In a group of 75 fourth graders, 20% do not like hot chocolate. How many students like hot chocolate

Answers

Answer 1

Answer: $20\%\ do\ not\ like\ hot\ chocolate,\ therefore\n100\%-20\%=80\%\ like\ hot\ chocolate\n\np\%=(p)/(100)\to80\%=(80)/(100)=(8)/(10)=(4)/(5)\n\n80\%\ of\ 75=(4)/(5)\cdot75=4\cdot15=\boxed{60}\leftarrow answer$

Answer 2

Answer: Let find how many do not like hot chocolate.

.20*75 = 15 fourth graders don't like hot chocolate.

Now lets see how many like hot chocolate

75 -15 = 60 kids like hot chocolate.

Another way to do this is you know that 20% of kids don't like hot chocolate then that means 80% must like hot chocolate.

So now you just have to do .8*75 and you get 60

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I need helpppppp ASAP
steven has a rectangular rug with a perimeter of 16 feet the width of the rug is 5 feet what is the length of the rug
Solve for J J/2 + 7 = 12
Use factoring to rewrite each expression in n equivalent from. Use the fewest number of terms possible. Show each step of your work A. 4×+8+2 B. 3×-12+6×+9
PLEAS EHELP I BEG YOU!!!!!

Bea is building a 1:120 scale model of a museum building. Her model has a rectangular base that is 3 feet wide and 2 feet long. What is the area of the base of the actual museum in square feet?

Answers

the answer going to be 16

Please help!! -5 = 7 + 3r

Answers

Hi!

-5 = 7+3r

-5-3r = 7+3r-3r

-5-3r = 7

-5-3r+5 = 7+5

-3r = 12

-3r 12
▬ = ▬
-3 -3

r= -4

R would equal -4. Subtract 7 from each side & youll get -12=3r then divide each side by 3.

Solve the following system of equations.
2x + 5y = 19
x - 2y = - 4

Answers

Answer:

Step-by-step explanation:

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2x + 5y = 19

x - 2y = -4

Multiply the second equation by 2

2x - 4y = -8

Now we have:

2x + 5y = 19

2x - 4y = -8

Subtract the second eq from the first to get:

9y = 27

/ 9

y = 3

Now substitute this value into one of the first equations

x - 2(3) = -4

x - 6 = -4

x = 2

Thus, your answer would be option B

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Find 1+ 2+ 3+ 4+ ... +50, the sum of the first 50 natural numbers.
The sum is

Answers

Step-by-step explanation:

First term(a) = 1

Common difference(d)=2-1=1

No.of term(n)=50

Sn=n÷2(n+1)=50÷2(50+1)=1275

A trapezoid in a coordinate plane has vertices (-2,5),(-3,-2),(2,-2),and (1,5) What is the height of the Trapezoid

Answers

Rise: 7, Run: 0
Rise (on the y-axis); from -2 to 5
Run (x-axis): 0

A rectangular closet has a perimeter of 10 feet. If the width of the closet is 3 feet what is the length of the closet?

Answers

The perimeter is equal to 2 * width + 2 * length.
We are provided that the width is 3 feet and the perimeter is 10 feet. So,
2 * 3 + 2 * length = 10
6 + 2 * length = 10
2 * length = 4
length = 2

The answer is 2 because if 2 sides are 3, then you add 3+3 which is 6. Then you think what plus 6 equals 10 which is 4. Finally, you have to take 4 and split it in half which is 2. Your answer is 2.

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