Jae's homework consists of 16 math problems. She has finished 4 problems so far.

2 answers:

5 0

To solve this problem, you can first set up a fraction to show how much is done out of the total amount of questions. Since there are 16 total questions, the denominator will be 16. Since 4 questions were answered, 4 is going to be the numerator. So, your fraction will be 4/16.

4/16 can be simplified to 1/4

Divide 1 by 4 to get a decimal. The decimal that you get should be 0.25. Move the decimal point to the right 2 places to get what it is as a percent.

0.25 = 25%

VMariaS [17]3 years ago

3 0

Jae has finished 25% of her homework.

4/16
=1/4
=1÷4
=0.25

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Question is on the picture !

Nataly [62]

Answer: 122.5

======================================================

Explanation:

First thing to do is to find the perimeter of figure B. Add up all the sides and we get: 5+9+9+12 = 14+21 = 35.

The scale factor 7:2 means that if the perimeter of figure A was 7, then the perimeter of figure B would be 2. Or it could be 14 for A and 4 for B. And so on. The idea is that the two perimeters scale up or down together. This allows us to set up the proportion below in which we can solve for x

(perimeter of A)/(perimeter of B) = 7/2

x/35 = 7/2

x*2 = 35*7 .... cross multiply

2x = 245

2x/2 = 245/2 .... divide both sides by 2

x = 122.5

The perimeter of figure A is 122.5

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