Question

Monique collects data from a random sample of seventh-graders in her school and finds that 4 out of 8 seventh graders participate in​ after-school activities. Write and solve a proportion to estimate the number of seventh-graders n who participate in​ after-school activities if 144 seventh graders attend​ Monique's school. Solve the proportion for n.

Answer 1

4/8= 1/2 or .5 n= 1/2s if s= number of students. — 144/2= 72 N is 72 students

Answer 2

The answer is 4/8=n/144; n=72.

Explanation:

To solve a proportion, you croos multiply. In this case you get 144 times 4=8n.

This simplifies to 576=8n. Therefore, n=72.