Step-by-step explanation:
(xy)(xy)(xy)(xy)(xy)(xy)(xy)
(-ab)(-ab)(-ab)(-ab)(-ab)(-ab)
Suppose the set A = U. How many elements are [tex]A^{c}[/tex]
The number of elements in [tex]A^c[/tex] is zero.
What is a set?A set is a collection of items where there are operations such as:
Union of sets, the intersection of sets, and the complement of sets.
We have,
U = universal set
This includes all values.
[tex]A^c[/tex] = complement of set A.
This means,
All the elements of U except the elements of A.
[tex]A^c[/tex] = U - A
Now,
If A = U,
[tex]A^c[/tex] = U - U = 0
Thus,
There are no elements in [tex]A^c[/tex].
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The table lists recommended amounts of food to order for 23 party guests. Nathan and Amanda are hosting a graduation party for 40 guests. They know there will also be guests stopping by who may have come from other parties. For ordering purposes, they will count each of these "drop-in" guests as half a guest. How much of each food item should Nathan and Amanda order for a graduation party with 35 drop-in guests?
The number of people at the graduation party would be 57.5, so the quantity of food required for them is Food item A = 65 piece, Food item B = 14(1/6) pounds and Food item C = 4(3/8) pounds.
What is fraction?
In mathematics, a fraction is represented by a number that identifies a portion of a whole. A fraction is a component or section taken from a whole, which can be any number, a certain amount, or an object.
Number of guests in the graduation party, a = 40
Number of drop in guests at the graduation party, b = 35
Now, drop-in guests are counted as half a guest, so the number becomes b = 35/2.
Total number of guests = a + b
Total number of guests = 40 + 35/2
Total number of guests = (80+35)/2
Total number of guests = 115/2
Total number of guests = 57(1/2)...
The table shows amount of food -
Food item A 26 piece, Food item B 5(2/3) pounds and Food item C 1(3/4) pounds.
Also, it recommends amount of food to order for 23 party guests.
So, number of groups having 23 people -
= 2(23) + 11.5 group
= 2(23) + 1(1/2) group...
Therefore, there should be 2(1/2) times quantity of food mentioned in the table.
For Food item A - 26 × 2(1/2)
= 26 × 5/2
= 65 piece
For Food item B - 5(2/3) × 2(1/2)
= 17/3 × 5/2
= 85/6
= 14(1/6) pounds...
For Food item C - 1(3/4) × 2(1/2)
= 7/4 × 5/2
= 35/8
= 4(3/8) pounds...
Therefore, the quantity of food for party should be Food item A = 65 piece, Food item B = 14(1/6) pounds and Food item C = 4(3/8) pounds.
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Sam is renting one of two cars to go on a 300 mile trip. The first car can travel 75 miles on 5 gallons of gas. The second car can travel 240 miles on a 20 gallons of gas. Each car costs the same to rent. And Sam wants to rent the car with better gas mileage. Sam estimate that he will pay 49.42 for every 14 gallons of gas he has to buy. Which car should Sam rent, and how much money should Sam bring for gas?
The better car is car A and Sam would pay $70.
Which car is better?We can see that we can only be able to judge the better car by the way that the gas is able to consume fuel. We can now see that the cars are two and we have the gas consumption of each as;
For car A = 75 miles / 5 gallons = 15 miles/gallon
For car B = 240 miles/ 20 gallons = 12 miles/gallon
As such car A is the better car.
Miles to be covered = 300 miles
If 1 gallon takes 15 miles
x galloons takes 300 miles
x = 20 gallons
If 14 gallons cost $49.42
1 gallon costs 49.42/14
=$3.5
Sam would pay; $3.5 * 20
= $70
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Chris is employed as a waiter in an upscale
restaurant. His restaurant pays him $5.75 per hour
during which time he can serve two groups. The
average tip per group is $8.75. Write an equation that
outputs Chris' total income (1) based on the number of
hours he works (h).
Equation that represents Chris's total income = ($5.75+$17.5) X, where X is the number of hours he works in a day.
What is equation?Equation is a mathematical statement that expresses the equality between two or more expressions.
Equation are different types such as equation with one variables and equation with two variables. The equation is used to determine the unknown values.
What is the equation that outputs Chris total income?Assume, Chris works X hours in a day.
He earns $5.75 per hour.
during his work time he serves two groups.
The average tip per group = $8.75
tips earned from two groups = $8.75 × 2 = $17.5
Outputs of Chris total income if he works total X hours in a day
= ($5.75+$17.5) X
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For every 3 green marbles James has, he has 2 yellow marbles. What is the ratio of green to yellow marbles? If James has 12 green marbles and 8 yellow marbles, draw a visual model to represent the total marbles.
The ratio of green to yellow marbles is 3/2.
What is ratio?
A ratio in mathematics demonstrates how many times one number is present in another. For instance, if a bowl of fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six. The ratio of oranges to the total amount of fruit is 8:14, and the ratio of lemons to oranges is 6:8.
Given:
For every 3 green marbles James has, he has 2 yellow marbles.
We have to find the ratio of green to yellow marbles.
As for every 3 green marbles James has, he has 2 yellow marbles.
So, the the ratio of green to yellow marbles is 3/2.
Hence, the ratio of green to yellow marbles is 3/2.
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log9 (8-2x) = log9(-3x+2)
Answer: X=-6
Step-by-step explanation: Since both logarithms have a base of 9, we can simply get rid of them. We could also do 9^(log9(8-2x))=9^(log9(-3x+2)). This would eliminate the logarithms.
Now we are just left with a simple algebraic equation: 8-2x=-3x+2.
We add 3x on both sides to get 8+x=2. We subtract 8 on both sides to get x=-6. There is no need to create a domain for the values of x since this is not an inequality problem.
2 1/4 divided by 1 1/2
Answer: 3/2
Step-by-step explanation:
Answer:
3/2 or 1 1/2
Step-by-step explanation:
[tex]2\frac{1}{4}/1\frac{1}{2} \\\frac{9}{4}/\frac{3}{2} \\(\frac{9}{4})(\frac{2}{3})\\\frac{18}{12} \\\frac{3}{2} or 1\frac{1}{2}[/tex]
Write the solution of the inequality in set-builder notation:
NEED HELP ASAP
The solution of the inequality in set-builder notation is {p I p ≥ 1}.
The correct option is A.
What is an inequality?In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to each other. To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.
Given:
An inequality,
2(3p-11) ≥ -16
Solving the parenthesis,
6p-22 ≥ -16
6p ≥ -16 + 22
6p ≥ 6
p ≥ 1
Therefore, the solution is {p I p ≥ 1}.
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Solve for x. -3x - 6 = -4x + 5
The solution to the equation -3x - 6 = -4x + 5 is x = 11.
What is equation?
An equation is a mathematical statement that uses an equals sign (=) to show that two expressions have the same value.
To solve for x in the equation -3x - 6 = -4x + 5, we need to isolate the variable x on one side of the equation. We can do this by adding 4x to both sides of the equation to eliminate the negative 4x term on the right-hand side:
-3x - 6 + 4x = -4x + 5 + 4x
Simplifying the left-hand side by combining like terms, we get:
x - 6 = 5
Finally, to isolate x, we add 6 to both sides of the equation:
x - 6 + 6 = 5 + 6
Simplifying the left-hand side and the right-hand side, we get:
x = 11
Therefore, the solution to the equation -3x - 6 = -4x + 5 is x = 11.
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Marcel is performing the first test on his company's new electric car. During the test, the electric car reaches a maximum speed of 81 mph.
The performance test results of the electric car can be modeled by the following graph, where x represents time, in seconds at the start of the test, and y represents the speed, in miles per hour.
At 0 seconds and 12 seconds, the electric vehicle is not moving.
What is speed?The most crucial scientific notion is measurement.
Base or physical fundamental units are used to quantify a wide range of quantifiable quantities.
One such measurable metric is speed, which calculates the ratio between the distance an object travels and the time needed to cover that distance.
The distance traveled in relation to the time it took to travel that distance is how speed is defined.
Since speed simply has a direction and no magnitude, it is a scalar quantity.
When an object travels the same distance in the same amount of time, it is said to be moving at a uniform speed.
Average speed is the constant speed determined by the ratio of the total distance traveled by an object to the total amount of time it took to travel that distance.
According to our question-
At the start of the test, x: represents the time in seconds.
Y: stands for the speed, expressed in miles per hour.
Then, we have this:
x = 0 —-> y = 0
x = 12 —-> y = 0
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Ellen can jog 3,000 feet in 5 minutes. If she jogs at the same rate, how many feet can she jog in 15 minutes?
Answer:
9,000
Step-by-step explanation:
5(3)=15
3000(3)=9000
A professional basketball player is 76 inches tall. A model of this player is 6
inches tall. Determine the simplified scale factor of the model to the real-life
player. Use colon notation. Then explain what the scale factor means.
The scale factor of the model to the real-life player is 6:76. This can be read as 6/76 or 0.0789 or 0.079(approximately)
The scale factor is a ratio that compares the size of the model to the size of the real-life object. In this case, the scale factor of 6:76 tells us that for every 76 inches of the real-life player, the model is only 6 inches. In other words, the model is 6/76 or approximately 0.0789 times smaller than the real-life player.
In general, a scale factor is a number used to multiply all the dimensions of an object to get a corresponding model or representation of that object, where the ratio of the corresponding dimensions between the real-life object and the model is represented by the scale factor.
It should be noted that the scale factor can also be represented in fraction or decimal form, but the colon notation gives a more meaningful representation of the comparison of the size between the model and the real-life object.
Answer: The scale factor for the basketball player to the model is 16 inches to 1 inch
Step-by-step explanation:
Question
A proposed change in income tax suggests charging 20% on a person's income up to $30, 000 and then 40% on any
income above that. If a person has an income of $47, 000, what will be their income tax under the proposal?
Give your answer in dollars to the nearest dollar. Do not include commas or the dollar symbol in your answer.
The total income tax imposed on $47,000 is $12,800
How does income tax work?The term "income tax" describes a class of taxes that governments impose on income generated by people and businesses within their territorial jurisdiction.
Taxpayers are required by law to submit an income tax return each year in order to determine their tax obligations.
Income taxes are the main source of funding for governments. They are employed to fund public services, provide residents with goods, and settle debts owing to the government.
A number of states and municipal governments, in addition to the federal government, also require payment of income tax. The Internal Revenue Service is responsible for collecting taxes and enforcing the tax laws in the United States (IRS).
Regarding credits, deductions, and other forms of taxable and reportable income.
Firstly let us break the income tax as per the given condition
Income = 47,000 = 30,000 + 17,000
hence 20% tax is imposed on $30,000 and 40% on $17,000
Total income tax = 20% of 30000 + 40% of 17000
Total income tax = 6000 + 6800 = 12800
hence, The total income tax imposed on $47,000 is $12,800.
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Darby has a $50 gift card to spend at a coffee shop. Each cup of coffee is $2.40. Write and solve an inequality to determine how many cups of coffee she can buy so she has at least $8 left to purchase an insulated mug.
Question: Darby has a $50 gift card to spend at a coffee shop. Each cup of coffee is $2.40. Write and solve an inequality to determine how many cups of coffee she can buy so she has at least $8 left to purchase an insulated mug.
To make an equation we need to do $50-$8 to see how much money we have left to spend on coffee after buying the mug which is $42
42 divided by 2.4 = 17.5 but since you cant buy half a coffee you’d get 17 with $1.2o left over
A way to write this equation is 2.4C + 8 = 50
C acts as a variable to represent the number of cups of coffee you can get while 8 just stands for the one insulated mug you want
hope this helps :D
Answer: 2.4C + 8 = 50
400 divide by 15=_ divide by 1/2
Answer:
53.333
Step-by-step explanation:
400/15 x 2 = 53.333
(1,-9) and (-3,-9) in slope intrcept form
Question 5
SE
Which of these scales is equivalent to the scale 1 cm to 5 km? Select all that apply. (Lesson 1-11)
A) 3 cm to 15 km
B) 1 mm to 150 km
C) 5 cm to 1 km
D) 5 mm to 2.5 km
E) 1 mm to 500 m
©2023 McGraw Hill. All Rights Reserved. Privacy Center Terms of Use Minimum Requirements Platform
Answer:3 cm to 15 km
Step-by-step explanation:
Use the table to write a linear function that relates y to x
Answer:
From the table, we can see that the y value is always -7, regardless of the x value. This means that the y-intercept of the function is -7.
Step-by-step explanation:
From the table, we can see that the y value is always -7, regardless of the x value. This means that the y-intercept of the function is -7.
Therefore, the linear function that relates y to x, using this table, is:
y = -7
It's a constant function, no matter what the x value is, the y value is always -7.
Use the figure to the right to find the value of PT. T is the midpoint of PQ.
PT=3x+6 and TQ=5x-6
The value of the variable 'x' is 6. Then the length of the line segment PT will be 24 units.
What is a line segment?A line segment in mathematics has two different points on it that define its boundaries. A line segment is sometimes referred to as a section of a path that joins two places.
The information is given below.
PT = 3x + 6 and TQ = 5x - 6
T is the midpoint of PQ. Then the equation is given as,
PT = TQ
3x + 6 = 5x - 6
2x = 12
x = 6
Then the length of the line segment PT will be given as,
PT = 3(6) + 6
PT = 18 + 6
PT = 24 units
The value of the variable 'x' is 6. Then the length of the line segment PT will be 24 units.
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It takes you 0.8 of a minute to read each page of your health book. It takes you 5.5 minutes to take the test at the end. How long will it take you to read 6.25 pages and also take the test?
The number of minutes to read is 6.25 pages and taking the test will be 5 minutes and 0.50 minutes, respectively.
What is the rate?The rate is the ratio of the amount of something to the unit. For example - If the speed of the car is 20 km/h it means the car travels 20 km in one hour.
It takes you 0.8 of a minute to read each page of your health book. It takes you 5.5 minutes to take the test at the end.
The number of minutes to read 6.25 pages will be given as,
⇒ 6.25 x 0.8
⇒ 5 minutes
The number of minutes to take the test will be given as,
⇒ 5.5 - 5
⇒ 0.50 minute
⇒ 0.50 x 60
⇒ 30 seconds
The number of minutes to read is 6.25 pages and taking the test will be 5 minutes and 0.50 minutes, respectively.
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5 cards are picked from a deck of cards: the cards are cards with numbers . Each card has a different number. Every suit is represented. The sum of the numbers on the even-numbered cards is equal to the sum of the numbers on the odd numbered cards . The sum of the numbers on the black card is 22. The sum of the numbers on the red cards is 10. The sum of the spades is 16. The lowest numbered card is a heart. What are the cards ?
Probability is the possibility that something will occur. The probability is computed by dividing the total number of outcomes by the number of possible ways the event could occur.
How do I calculate probability?
Adding the aforementioned figures in the third column yields a total of 2,598,960, which is the total number of potential hands.
The likelihood that something will happen is known as probability. The number of possible outcomes is divided by the total number of possible outcomes to determine probability.
The 36 numbered cards go from 2 through 10, and there are 12 face cards (Kings, queens, and jacks). There will be 51 total cards left when the first face card is pulled, leaving 11 face cards.
Each of the four suits—Spades, Hearts, Diamonds, and Clubs—has 52 cards in a "normal" deck of playing cards. The 13 cards in each suit are Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, and King.
Here's one possible solution:
Let's start by assigning the numbers to the 5 cards:
Heart: 1
Spade: 2
Club: 7
Diamond: 8
Spade: 9
The sum of the numbers on the even-numbered cards (2, 8) is 10, which is equal to the sum of the numbers on the odd numbered cards (1, 7, 9). The sum of the black cards (7, 9) is 16, which is equal to the sum of the spades (2, 9). The sum of the red cards (1, 8) is 9, which is equal to 10.
So, the 5 cards are:
1 of Heart
2 of Spade
7 of Club
8 of Diamond
9 of Spade
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Mariela bought 15 pounds of birdseed for $10.00. Mark bought 12 pounds of birdseed for $8.00. Daryl bought 18 pounds of birdseed for $12.00. The graph below shows these purchases.
The cost for one pound of birdseed should be $0.67. The solution has been obtained using the unitary method.
What is a unitary method?
In the unitary method, the value of a single unit is first calculated, and only then is the value of the necessary number of units calculated. The unitary technique, to put it simply, is used to calculate the value of a single unit from a given multiple.
We know that cost per pound = Total pounds/cost
So, for Mariela
15 pounds = $10.00
1 pound = $0.67
For Mark,
12 pounds = $8.00
1 pound = $0.67
For Daryl,
18 pounds = $12.00
1 pound = $0.67
Hence, the cost for one pound of birdseed should be $0.67.
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Since, the question is incomplete, the complete question has been attached below
what is the unit form of 5 divided by 4?
Answer:
Should be Ones: 1, Tenths: 2, Hundredths: 5
Step-by-step explanation:
or
A French restaurant used 203,640 ounces of cream last year. This year, due to a menu update, it used 65% less. How much cream did the restaurant use this year?
This year 71, 274 ounce cream used.
What is Percentage?To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.
Given:
A French restaurant used 203,640 ounces of cream last year.
This, year 65% less cream used.
So, this year the amount of cream used
= 203640 - 203640 x 65%
= 203640 - 203640 x 0.65
= 203640 - 132366
= 71274 ounce
Hence, 71274 ounce cream used this year.
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Need answer quick 100 points! and brainliest
Graph using this picture
y+4=2/5(x−3)
Answer:
See attached graph.
Step-by-step explanation:
Given equation:
[tex]y+4=\dfrac{2}{5}(x-3)[/tex]
Expand the right side of the equation:
[tex]\implies y+4=\dfrac{2}{5}x-\dfrac{6}{5}[/tex]
Subtract 4 from both sides of the equation:
[tex]\implies y=\dfrac{2}{5}x-\dfrac{26}{5}[/tex]
Substitute x = 3 into the equation:
[tex]\implies y=\dfrac{2}{5}(3)-\dfrac{26}{5}[/tex]
[tex]\implies y=\dfrac{6}{5}-\dfrac{26}{5}[/tex]
[tex]\implies y=-\dfrac{20}{5}[/tex]
[tex]\implies y=-4[/tex]
Substitute x = -2 into the equation:
[tex]\implies y=\dfrac{2}{5}(-2)-\dfrac{26}{5}[/tex]
[tex]\implies y=-\dfrac{4}{5}-\dfrac{26}{5}[/tex]
[tex]\implies y=-\dfrac{30}{5}[/tex]
[tex]\implies y=-6[/tex]
To graph the given equation, plot the two found points on the given coordinate plane:
(3, -4)(-2, -6)Draw a straight line through the points.
(See attachment).
13. Translate to an algebraic expression.
The result of subtracting j from 13
The algebraic expression for "the result of subtracting j from 13" can be written as 13 - j.
How do you construct an algebraic expression for subtraction?The signs of all the terms in the algebraic expression that is to be subtracted from another must be changed from "+" to "-" or from "-" to "+" before the two expressions are added.In algebra, subtraction is an operation that can be used to determine the difference between two numbers. Subtraction is represented by the minus sign (-).When subtracting, the number being subtracted from is called the minuend, and the number being subtracted is called the subtrahend. To subtract j from 13, the minuend is 13, and the subtrahend is j.Therefore, the algebraic expression for "the result of subtracting j from 13" can be written as 13 - j.Subtraction is a fundamental operation in algebra which can be used to solve many types of problems.It can be used to determine the difference between two numbers, as well as to solve equations.For example, if the equation 5x - j = 13 is given, we can use subtraction to solve for x.To do this, we would subtract j from both sides of the equation, resulting in the equation 5x = 13 - j.We can then divide both sides by 5 to get x = (13 - j) / 5. Therefore, the result of subtracting j from 13 is (13 - j).
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Question content area top Part 1 Tell which set or sets the number below belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, or real numbers. 427
The 427 is in the sets of the whole number, real number, rational number, natural number, and integers.
What is set?
A set is a collection of clearly - defined +ique items. The term "well-defined" applies to a property that makes it simple to establish whether an entity actually belongs to a set. The term 'unique' denotes that all the objects in a set must be different.
As we know, a number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.
It is given that:
The number is 427
The number 427 is in the set of whole numbers
The number 427 is in the set of real numbers
The number 427 is in the set of rational numbers because it can be written as in the form of p/q.
The number 427 is in the set of natural numbers
The number 427 is in the set of integer numbers
Hence, the 427 is in the sets of the whole number, real number, rational number, natural number, and integers.
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.A certain store is selling packages of 10 pencils and 4 pens for back to school. The store manag wants to make a larger package in the same ratio. If the large package has 10 pens, how mar pencils are in the large package?
Answer:
4 pencils.
Step-by-step explanation:
The ratio of pencils to pens in the original package is 10:4, which means that for every 4 pens, there are 10 pencils. To find the number of pencils in the larger package, we can use this same ratio.
If the large package has 10 pens, we can set up the proportion:
x/10 = 10/4
Where x is the number of pencils in the large package. To solve for x, we can cross-multiply:
10 * 4 = x * 10
40 = x*10
x = 40/10
x = 4
So the large package contains 4 pencils.
Question 8(Multiple Choice Worth 2 points) (Laws of Exponents with Whole Number Exponents LC) Which is an equivalent expression for (52 • 34)3?
Answer:
An equivalent expression for (52 • 34)3 would be (52 • 34) • (52 • 34) • (52 • 34)
Another way to express this is (52)3 • (34)3
So it can also be written as (5^32^3) * (3^44^3)
It can be also expressed as 125 * (81*64)
This expression is the result of multiplying three times the product of 5^2 and 3^4
Alex is purchasing 3 concert tickets. The website charges a $5 fee for each ticket. Her total is $117. What is the original cost of each concert ticket? Choose the equation that represents the situation.
The original cost for each concert ticket is given as follows:
$34.
How to obtain the original cost for each concert ticket?The original cost for each concert ticket is obtained applying the proportions in the context of this problem.
The fee for a single ticket is divided as follows:
$5 fee for the website.$n fee for the original cost.Hence the proportional relationship that models the cost of purchasing x tickets is given as follows:
y = (5 + n)x.
Alex purchased 3 concert tickets, meaning that x = 3, for a total of $117, meaning that y = 117, hence the original cost n is obtained as follows:
117 = (5 + n) x 3
Dividing by 3 on both sides, we have that:
5 + n = 39
n = 39 - 5
n = $34.
Which is the original cost for each concert ticket.
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