Alex has cards with different shapes on them. He sorts the cards and determines that 4% of the shapes on the cards are triangles. Alex has 5 triangle cards.
how many cards are there in all.

Answers

Answer 1

Answer:

125 cards

Step-by-step explanation:

I did this by dividing 100 by 4, since there is 100 percent in total. This gets 25. I then multiplied 25 by 5, because 4 percent = 5 cards. Basically for every 4 percent for every five cards. take it as the amount of 4 percents, there are the same amount of 5 cards.

Hope this helps :)

Answer 2

Answer:

125

Step-by-step explanation:


Related Questions

Apple decided to walk [tex]9\frac{3}{10}[/tex]mi from his house to the beach. In the first hour, he walked [tex]3\frac{4}{5}[/tex]mi. In the second hour he walked [tex]2\frac{9}{10}[/tex]mi. How much farther did he have to go?

Please show your work!

Answers

2 3/5

first convert each fractions into improper fractions.
9 3/10 = 93/10
3 4/5 = 19/5
2 9/10 = 29/10

then, add how much he walked in both hours together,

19/5 + 29/10 = 67/10

next, subtract your sum from the total amount Apple has to walk,

93/10 - 67/10 = 13/5

lastly, convert back to mixed number,
2 3/5

PLEASE ANSWER!! Every second, an elevator either has a 50% chance of going up and a 50% chance of going down. If the elevator starts at floor 15, what is the probability that, after 5 seconds, the elevator is at floor 18?

THANK YOU AND SHOW YOUR WORK PLEASE!

Answers

Answer:

The number of ways to assing 7 floors to 5 passengers is 7⋅7⋅7⋅7⋅7

Step-by-step explanation:

The probability that, after 5 seconds, the elevator is at floor 18 is 16807.

Every second, an elevator either has a 50% chance of going up or a 50% chance of going down.

If the elevator starts on floor 15.

What is the meaning of arrangement?

An act of arranging; state of being arranged

The number of ways to assign 7 floors to 5 passengers is,

We have the arrangements,

= 7⋅7⋅7⋅7⋅7

=16807

To learn more about the arrangement visit:

https://brainly.com/question/860037

Of all the people at a community swimming pool, 54 are in the water and 66 are not in the water. What percentage of the people at the pool are in the water?

10%

45%

82%

55%

Answers

Answer: 45%.

Step-by-step explanation: When you solve problems like these, you need to make the total 100%.  The total amount of people at the community pool is 120.  120 can be our 100%.  66 people aren't in the water and 54 are in the water.  As you can see, less than half of the total number of people at the community swimming pool is in the water, which means that is 45%.  The 66 people who aren't in the water are 55% of the total people that are at the community swimming pool.  So in summary, 45% of the total people who are in the community swimming pool are in the water.

Have a great day! :)

The percentage of people at the pool and in the water is a representation of the fraction of people in the water to the total people at the pool, written like this.

people in water / total people at the pool

Substituting the given numbers:

54 / (54 + 66)

54 / 120

Solve the fraction and multiply by 100 to find the percentage:

54 / 120 = 0.45 x 100 = 45%

Let me know if you have any questions!

One-step inequalities
5 stars for correct answers
have a great day

Answers

Answer:

x ≤ 40

Step-by-step explanation:

Given:

[tex]\displaystyle \large{\dfrac{x}{-8} \geq -5}[/tex]

Multiply both sides by -8 to get clear out the denominator:

[tex]\displaystyle \large{\dfrac{x}{-8}\cdot (-8) \geq -5\cdot (-8)}\\\displaystyle \large{x\geq 40}[/tex]

Because the LHS (Left-Handed Side) expression is in negative, make sure not to forget to swap the sign from ≥ to ≤

Hence, the solution is x ≤ 40

A right prism has a triangular base. The length of the base is 12 yards and the height of the base is 3 yards. The height of the prism is 3.5 yards.

What is the volume of the prism?


39.5 yd³

52.5 yd³

63 yd³

126 yd³

Answers

52.5 is the answer I think

The volume of prism is,

⇒ V = 126 yards²

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

A right prism has a triangular base. The length of the base is 12 yards and the height of the base is 3 yards. The height of the prism is 3.5 yards.

We know that;

The volume of prism is,

⇒ V = B × H

Where,  B is the area of the base and h is the height of the prism.

Hence, We get;

The volume of prism is,

⇒ V = 12 × 3 × 3.5

⇒ V = 126 yards²

Thus, The volume of prism is,

⇒ V = 126 yards²

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ3

The diameter of a circle is 14 in.
What is the radius of the circle?
A. 7 in
B. 21 in
C. 28 in
D. I don't know.

Answers

A. 7in

the radius is always half the diameter :))

branliest?

I believe the answer is 7

Step-by-step explanation:

The radius is like half of the diameter and 14/2=7

Hope this helps

YOU GET BRAINLIEST IF YOU GET THIS RIGHT. ROUND TO THE NEAREST TENTHS PLEASE.

Answers

Answer:

26.4

Step-by-step explanation:

they are both corresponding so:

17÷56=8÷x

x=26.4

Answer:

it might be 27 if not 47 im

not completely sure

Step-by-step explanation:

PLEASE HELP ME DUE IN 1 MIN WILL GIVE BRAINLIEST, 100 POINTS, AND 5 STARS IF RIGHT!!!!!

Answers

Answer: 2/15 feet^2
WORK SHOWN BELOW!!

HELP!!! please 50 pt reward!!!!!!

Answers

You can divide 22/5 which equals 4.4 and then multiply that by 7

Answer:

Divide 22/5 by 4.4 and multiply by 7

Step-by-step explanation:

Mr math is looking missing pair of socks in the past week and how many socks his missing
heres the reference

Answers

Answer:

1/3

Step-by-step explanation:

add the sum of all of the sock, then subtract 8. 24 minus 8 is 16, which is 2/3

A grocer combined peanuts that cost $5.20/lb with walnuts that cost $6.40/lb. How many pounds of each were used to make a 45 pound mixture that cost $6/lb?

Answers

Answer:

Step-by-step explanation:

What is the theorem that states a perpendicular line to the hypotenuse splits the triangle into two similar right triangles?

I forgot and I need this for statement-reason proof. an answer would be appreciated

Answers

Answer:Pythagoras

Step-by-step explanation:

The fish tank is 80% full. After
adding stones to the bottom of the tank,
the tank is 92% full. What is the volume
of the stones?

Answers

Answer:

12%

Explanation

Because the fish tank is 80% and when the stone is put in the water the water is filled 92% so that means that the water rises 12%

If the tank was at 80% and then 92% after adding stones you could subtract 92-80 which would give you 12. the volume of the stones would be 12%

PLEASE HELP ME!!!!!!

Answers

Answer:

e

Step-by-step explanation:

Question 1:

18 oz = ___ lb

18 oz = 1.125 lb = 1 1/8 = 1 2/16

Third answer

Question 2:

9 oz = ____ lb

9 oz = 0.5652 lb = 9/16 lb

There are 16 ounces in one pound.

Question 3:

13 in = ____ ft

13 in = 1 1/12 ft

There are 12 inches in one foot.

Question 4:

5 in = ____ ft

5 in = 5/12 ft

hope this helps :)

please help im pretty bad at math so if you could do this ill give brainliest

Answers

If I figure out the other answers Ill edit this post

#1

32/4=8

16×1/2×-2=-16

Answer=8×-16=-128

#2

20 ÷ (5 x 2/5) + 3

20 ÷ (2) + 3

10 + 3

Answer=13

Answer:

Q1 = 62

Q2 = 13

Q3 = 6

Q4 = 18

Step-by-step explanation:

Was having trouble looking at the images and couldn't tell if it was a + or a division sign.

Find the distance between (1, 2) and (-3, 1). Show your work and round your answer to the nearest tenth, if

necessary. ​

Answers

Answer:

7.2

Step-by-step explanation:

Distance formula :

Insert the coordinates to get

Simplify to get 7.280109889 → rounded to the nearset tenth 7.2

Answer:

7.2

Step-by-step explanation:

Distance formula :

Insert the coordinates to get

Simplify to get 7.280109889 → rounded to the nearset tenth 7.2

Step-by-step explanation:

The price of a pair of shoes is $72.00, plus 8% sales tax. What is the sales tax on this pair of shoes in dollars and cents?
A) $5.76
B) $6.56
C)$6.98
D) $7.24

Answers

Answer:

A.

Step-by-step explanation:

To find the answer, we have to do 8% of 72.

8% of 72 = 5.76

really thats all whats needed to do the problem

hope this helps :)

Answer:

A)5.76

Step-by-step explanation:

usa test prep

thank you!

what divided by 4 is 8?

Answers

Answer:

32

Step-by-step explanation:

If the question is x (standing for an unknown number) divided by 4 equals 8, then 8 times 4 should equal that unknown number.

x / 4 = 8

x / 4 (*4) = 8 (*4)

x = 32

We now can replace x with our number and see if this answer is valid.

x / 4 = 8

32 / 4 = 8

And yes, it is true. Therefore, 32 divided by 4 is 8.

I hope this helps! Have a lovely day!! :)

Jessica has 3 cards in a bag, each marked with a letter. The letters are X, Y, and Z. Without
looking, she reaches into the bag, pulls out a card, and then puts the card back in the bag. If
Jessica does this 3 times, what is the probability she pulls out the X card first, then the Y card,
and then the Z card?

Answers

Answer:

1/27

Step-by-step explanation:

The chance of getting X is ⅓. The chance of getting X then Y is ⅓², or ⅑. Finally, the chance of getting X, then Y, then Z is ⅓³, or 1/27

Answer:

1/27

Step-by-step explanation:

Mario walked at a rate of mile every minutes.
​What was his walking rate in miles per hour?

Answers

Answer: 4mi/h

Step-by-step explanation:

We have that Mario walks 2/3 of a mile every 10 minutes. Representing this as a fraction:

[tex]\frac{2/3}{10} \frac{mile}{minute}[/tex]

Next, you can use something called "dimensional analysis." A dimenision in this case would be the units. The desired units we want are miles per hour, but we are given miles per minute. You can use a few conversion factors to help get to those desired units. In 60 minutes, there is 1 hour. Let's multiply this conversion factor by our original fraction:

[tex]\frac{2/3}{10} \frac{miles}{minute}*\frac{60}{1} \frac{minute}{hour}[/tex]

As you can see above, the units of minutes will cancel. This will leave the units of miles on top, and hours on the bottom. Our units are now miles per hour after simplifying things:

[tex]\frac{2/3}{10}\frac{60}{1} \frac{miles}{hour}=2/3*6 \frac{miles}{hour}=4\frac{miles}{hour}[/tex]

Identify Structure Each figure below is made up of congruent trapezoids. Find the area of each figure.

Answers

Answer:

12cm

Step-by-step explanation:

The formula to find the area of a trapezoid is A = [tex]\frac{a + b}{2}[/tex]h. We replace the "a" and "b" with 6cm. We then replace the "h" with 12cm as your height is 12cm. The new formula is A = [tex]\frac{a + b}{2}[/tex]h = [tex]\frac{6 + 6}{2}[/tex] x 12. The answer to that equation is 12cm.

On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window?

An isosceles trapezoid with a top side 12 inches long and a longer bottom side. The height is 13 inches. The base of the triangle formed from the height on the right is labeled 2 inches.

A. 156 square inches
B. 182 square inches
C. 208 square inches
D. 364 square inches

Answers

The answer is D

Step-by-step explanation:

12×13×2=312+52=364

The answer will be D.

please help as soon as possible.

Answers

Answer:

Question 3

In 15 minutes, the tortoise walked 400 meters

1 hour ---> 60 minutes

60 minutes is 4 x 15 minutes

4 x 15 // 400 x 4

1 hour // 1600 meters = 1.6 kilometers

the tortoise can walk 1.6 Kilometers per hour

Question 4

2 quart bottle for 2.56$

1 quart = 32 fluid ounces

2 quart = 64 fluid ounces

2.56/64 = 0.04$ per fluid ounce

Find the perimeter and the area of the polygon with the given vertices.
J(-1, -2), K(-6, -2), L(-6, -8), M(-1, -8)

Answers

Answer:

Perameter = 22

Area = 30

Hope this helps.

Given the data presented in the bar graph, which age group represents 25% of the people at the family reunion? A) 10−19 B) 20−29 C) 30−39 D) 50−59

Answers

Answer:

B

Step-by-step explanation:

First you find the amount of people at the reunion which was 80. Then you find 25% of 80. 25% of 80 is 20. The only age group with 20 people is the 20-29 year olds.

Halp me i can't fail pt.3

Answers

Send the question and answers.

Answer: what’s the problem?

Step-by-step explanation: I can help if you want

HURRY
Susan has two dogs named Murphy and Fido. She feeds each of them the same type of dog food. Murphy eats 2/3 of a can of dog food each day. Fido eats 1/2 of a can of dog food each day. Each can of dog food costs $1.75. The pet store is offering a sale that allows customers to buy one can of food and get one free. Susan wants to buy a 60-day supply of dog food during the sale. To the nearest cent, what would be the cost of Susan's dog food purchase before tax?

Answers

Answer:

  $61.25

Step-by-step explanation:

The quantity for a 60-day supply is 60 times the 1-day usage. The BOGO offer means the sale price is effectively half the usual price.

__

One day supply: 2/3 can + 1/2 can = (4/6 +3/6) = 7/6 can

60-day supply: 60 × 7/6 can = 70 cans

Susan will be paying for 70/2 = 35 cans of dog food. (She will get 35 cans free.) So, her cost will be ...

  35 × $1.75 = $61.25

The cost of Susan's dog food purchase would be $61.25 before tax.

Solve the system by graphing.
y = x=1
y=4x+7

The solution is ( _ , _ )

Answers

4x+7= x+1
3x+7=1
3x= -6
x= -2
(-2)+1 = -1
y= -1
(-2, -1)

The weather forecast reports that the probability of rain today is 50% and the probability of rain tomorrow is 25%. What is the probability that it will rain on both days?

Answers

Answer:

75% of both days combined.

Step-by-step explanation:

75%= day 1 + day 2. (1 day =100%) 75%/200% 75/2=32.5/100

32.5%

The deli scale weighs meat and cheese in hundredths of a pound. Sam put 5/10 pound of pepperoni on the deli scale. What weight does the deli scale show?

Answers

Answer: If we simplify the given weight of the pepperoni, we divide the numerator by the denominator. The answer to the division is 5/10 or 0.5. Then, since the weight is asked in unit of hundredths, the final answer would be 2.5.Â

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