For each of the graphs below state whether they represent a proportional relationship and how you know. If the graph does represent a proportional relationship find the unit rate.
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However Graph 2 is proportional because it goes through the origin.
Origin= (0,0)
Related Questions
Which table below represents a function?
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Answer:
D
Step-by-step explanation:
Because im right! yesssss
Michael has a bag of marbles. The frequency of selecting each color is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5 Based on the given frequency, determine the experimental probability of selecting a black marble. 0.27 0.33 0.40 0.60
help asap if answer is correct and provided explanation i will give brainiest.
Answers
Reason:
6 black out of 4+6+5 = 15 total
6/15 = 0.40 is the experimental probability of selecting black.
Side note: The term "empirical probability" is the same as "experimental probability".
The experimental probability of selecting a black marble will be 0.40. The correct option is C.
What is probability?Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favourable outcomes to all outcomes.
Probability = Number of favourable outcomes / Number of samples
Given that Michael has a bag of marbles. The frequency of selecting each colour is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5.
Number of favourable outcomes = 6
Number of samples = 4+6+5 = 15
Probability = Number of favourable outcomes / Number of samples
Probability = 6 / 15
Probability = 0.40
Therefore, the probability will be 0.40.
To know more about probability follow
https://brainly.com/question/24756209
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Jonathan is driving to his grandma’s house. Jonathan’s car is going 75 mph and he has to go 340 miles still. Brighton, Jonathan’s cousin, is leaving his house and is traveling 70 mph and has to go 320 miles. Who gets to grandma’s house first? How long did it take him?
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Answer: Jonathan will get to his grandma's house first because his car is going 5 mph faster than Brighton's. It will take Jonathan 4 hours and 48 minutes to get to his grandma's house.
Answer: Johnathan will get it in 4.53 hours. Jonathon's cousin will take 4.57 hours.
Step-by-step explanation:
340/75=4.53
320/70=4.57
Expand the expression 3(n + 7)
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Answer:
3n + 21
Explanation:
you just times 3 with the numbers in the brackets
3n+3•7
3n+21
Explanation: Numerical factors in this term have been multiplied.
please hurry
Determine if the table shows a proportional relationship.
x 18.6 54.3 58.8
y 6.2 18.1 19.6
Yes, it is proportional because all y over x ratios are equivalent to one third.
Yes, it is proportional because all y over x ratios are equivalent to one fourth.
No, it is not proportional because 18.6 over 6.2 does not equal 18.1 over 54.3.
No, it is not proportional because 18.1 over 54.3 does not equal 58.8 over 19.6.
Answers
The image of a trapezoid is shown.
An isosceles trapezoid with a short base of 3 meters and a height of 6.2 meters. The portion of the large base from the left vertex to the perpendicular is 4 meters. The portion of the large base from the right vertex to the perpendicular is 7 meters.
What is the area of the trapezoid?
20.2 m2
43.4 m2
33.4 m2
86.8 m2
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Answer:
the answer is b
Step-by-step explanation:
because it is b
(2n²•n³•3n¹)²
(y•4y²)³
(4b³•b)²
(3s²•s³)²
(3r²•2r³)³
Simplify the exponents. Please show me how to do the step by step?? I'm not sure how to solve these when they have parentheses
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(2n²•n³•3n¹)²
First, simplify inside the parentheses. We multiply the coefficients and exponents. The coefficients: 2×3=6. and the exponents: 2×3×1=6. All together that gives: [tex](6n^6)^2[/tex]Then multiply the inside of the parentheses by itself since it's the exponent is 2. Therefore we end with [tex]36n^12[/tex]
(y•4y²)³
Same approach. Multiply the inside which gives [tex]4y^3[/tex] Then calculate that to the power of 3.
[tex]4y^3[/tex]×[tex]4y^3[/tex]×[tex]4y^3[/tex]=[tex]64y^9\\[/tex]
(4b³•b)²
[tex]=(4b^4)^2\\=4b^4\cdot4b^4\\=16b^8[/tex]
(3s²•s³)²
[tex]=(3s^5)^2\\=3s^5\cdot3s^5\\=9s^{10}[/tex]
(3r²•2r³)³
[tex]=(6r^5)^3\\=6r^5\cdot6r^5\cdot6r^5\\=216r^{15}[/tex]
Hope that helped. Let me know if you have any further questions!
Write a numberical expression for the word expressions
1. 30 more than 20
2. the product of 7 and 12
3. 100 decreased by 77
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7 + 12 = 19
199 - 77 = 122
(I beleive)
2) 7x12 = 84
3) 100-77 = 23
I don't do the PLES HELP PLES HELP ASAP stuff I just need help
I need to maintain my A in algebra
Answers
Answer:
Step-by-step explanation:
Step 1) find the rise over run
rise: 2
run: 3
Step 2) put this into slope intercept form (y=mx+b)
B is the y intercept, which is -5 in this case
final answer: y = 2/3x -5
run is 3:))))
Timothy brought in brownies for his class on his birthday.
Each box has 15 brownies in it.
He handed out 1 4/5 boxes.
1/9 of the brownies had nuts.
How many brownies had nuts?
A 5
B 3
C 2
D 4
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1. Carl makes a punch using the following recipe:
Give two other recipes that would taste exactly the same.
2. Look at the following recipes. Would each pair (a and b) taste the same? If not, which punch would taste more like plain juice? Use proportional reasoning, ratios, and graphs to help. Explain your reasoning for each.
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Answer: 1 purple, 1 and a half green, and 4 purple and 6 green.
Step-by-step explanation:
I'm not sure exactly what the question is, but if I thought of it correctly then it should be correct.
In a recent year, 18.9% of all registered doctors were female. If there were 43,100 female registered doctors that year, what was the total number of registered doctors? Round your answer to the nearest whole number.
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well, the total is "x", which oddly enough is the 100%.
now, we know that 18.9% of "x" is 43100, what the dickens is "x"?
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} x & 100\\ 43100& 18.9 \end{array} \implies \cfrac{x}{43100}~~=~~\cfrac{100}{18.9} \\\\\\ 18.9x=4310000\implies x=\cfrac{4310000}{18.9}\implies x\approx 228042[/tex]
The whole decimal is 2,280.42328
You have to divide 43,100 by 18.9
Have a great day and good luck with math!
I need help asap.....
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this is because -6 and -7 make -13 and multiply together to get +42
solve the equation for y: y + 7 = 5/4 (x + 16)
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To solve the equation for y, we need to get y by itself on one side of the equation.
The first step is to get rid of the fraction on the right side of the equation by multiplying both sides by 4:
4y + 28 = x + 16
Then, we need to move the x term to the left side of the equation by subtracting x from both sides:
4y + 28 - x = 16
Then, we need to move the constant term 28 to the left side of the equation by subtracting 28 from both sides:
4y - x = -12
Finally, we have the equation in the form y = (1/4)x - 3, so the solution for y is y = (1/4)x - 3
It is important to note that in this solution we have used the distributive property and followed the order of operations to get to the final result, if you don't follow this steps you might get a different result.
STEPS FOR SOLVING LINEAR EQUATIONy+7=45(x+16)Use the distributive property to multiply 45 by x+16.y+7=45x+20Swap sides so that all variable terms are on the left hand side.45x+20=y+7Subtract 20 from both sides.45x=y+7−20Subtract 20 from 7 to get −13.45x=y−13Divide both sides of the equation by 45, which is the same as multiplying both sides by the reciprocal of the fraction.4545x=45y−13Dividing by 45 undoes the multiplication by 45.x=45y−13Divide y−13 by 45 by multiplying y−13 by the reciprocal of 45.x=54y−52SOLVE FOR Yy=45x+13
The Leonard family uses up a 1/2 gallon jug of milk every 3 days. At what rate do they drink milk?
Simplify your answer and write it as a proper fraction, mixed number, or whole number.
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Answer: 1/8 a gallon per day
Step-by-step explanation: 1/2 / 3 = 1/8
Find the number that makes the ratio equivalent to 12:4.
60:__
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Answer: 12x5 is 60 and 4x5 is 20 so it is 12:4 to 60:20
Step-by-step explanation: Just use multiplication
Maggie wants to purchase 3 items that cost a total of $256. The sales tax in her area is 9.5%. What would her total cost be?
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Answer: The answer is $280.32
Step-by-step explanation:
Determine P(not blue) if the spinner is spun once. 12.5% 25% 37.5% 62.5%
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Answer:
the spinner did not spin once because it only went to 62.5% around not 100% around
Step-by-step explanation:
it never reaches 100% thus it could not spin around fully
Can you solve this for me? Thank you! :>
Answers
Answer:
h < 40
Step-by-step explanation:
Less than is <
Greater than is >
Less than or equal to is ≤
Greater than or equal to is ≥
h < 40
12x-14=-2 two step eqautions
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[tex]12x-14=-2[/tex]
Add 14 to both sides:
[tex]12x-14+14=-2+14[/tex]
[tex]12x=12[/tex]
Divide both sides by 12:
[tex]\dfrac{12x}{12} =\dfrac{12}{12}[/tex]
[tex]\fbox{x = 1}[/tex]
12x =12
x= 1
Please help. This is almost overdue :-(
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I believe this is $24.25
Total paid = $296
Number of tickets = 16
Cost per tickets = 296/16 = $18.5
This cost excludes the $5.75 saved due to the group.
Original price = $18.5 + $5.75 = $24.25
Answer:
Step-by-step explanation:
I believe this is $24.25
Total paid = $296
Number of tickets = 16
Cost per tickets = 296/16 = $18.5
This cost excludes the $5.75 saved due to the group.
Original price = $18.5 + $5.75 = $24.25
Which expression is equivalent to this expression?
3/4 (4h – 6)
A)3h – 9/2
B)4h + 9/2
C)3h – 6
D)4h + 6
Answers
Answer:
A) 3h-9/2
Step-by-step explanation:
3/4(4h-6)
3h-18/4
3h-9/2
———————
3/4 X 4 = 3
3h - 18/4
3h - 9/2
What is the volume of the following rectangular prism? Volume = 1 3/4 and 1/2
I NEED HELP ASAP
Answers
Answer:
Hi! I'm in middle school as well and I had this same question.
Step-by-step explanation:
I believe the answer is 7 1/3 or 7.333333
If it isn't, I am deeply sorry
Enter your answer and show all the steps that you use to solve this problem in the space provided.
A circle with radius labeled 23 yards
Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth.
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Answer:
The area of the circle that has a radius of 23 yards will be 1,661.06 square yards.
What is the area of the circle?
It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
Let r be the radius of the circle. Then the area of the circle will be
A = πr² square units
The radius of the circle is 23 yards. Then the area of the circle is calculated as,
A = π x (23)²
Simplify the equation, then the area of the circle is calculated as,
A = π x (23)²
A = 3.14 x 529
A = 1,661.06 square yards
The area of the circle that has a radius of 23 yards will be 1,661.1 square yards.
Hope this helps, if I'm wrong I sincerely apologize
Find the ratio of y/x to determine if the table represents a proportional relationship:
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Answer:
From the table, find the ratio between each value of y and its corresponding value of x. y/x = 1/5 = 1/5 y/x = 8/40 = 1/5 y/x = 13/65 = 1/5 So, the ratio between the values of y and and their corresponding values of x is constant. Hence, the relationship represented by the table given above is proportional.
Step-by-step explanation:
Picture 1: is the function described by the points linear or nonlinear?
Picture 2: which table could be a partial set of values for a linear function?
Picture 3: is this function linear or nonlinear?
Picture 4: select linear or nonlinear to correctly classify each function.
Picture 5: a function is represented by values in the table. The function represented in the table is linear or is not linear.
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Answer:
1) Linear
2) Top left
3) Nonlinear
4) Nonlinear
5) Linear
Step-by-step explanation:
1
There is a constant rate of change of 3. As the y changes by 3, the x changes by 1
2
The constant rate of change is 2
3
No constant rate of change
4
nonlinear The [tex]x^{2}[/tex] tells us that it will not be linear
5
linear
Can be written the in the slope intercept form
'y = -8x + 13
In September, the demand for pizza on the boardwalk reduces, therefore Manco and Manco reduced their prices from $4 to $3.75 per slice. Describe this change as a percentage.
A-1.07% decrease
B-93.75% decrease
C-6.25% decrease
D-67% decrease
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Answer:C
Step-by-step explanation:
400 / 6.25 = 25
a poll was conducted of 540 voters asking for which candidates they planned to vote The results are given in the table what percent of the voters planned to vote for the democratic
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Answer:
43.15% of the votes are democrats
Step-by-step explanation:
PLEASE HELP ME
This figure is made from a square and part of a circle. What is the perimeter of the figure to the nearest whole number unit?
A. 48
B. 54
C. 61
D. 64
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Which statement best defines a system of equations?