Question

There are 14 sixth graders, 29 seventh graders,

and 37 eighth graders in the musical at
Canon Middle School. If 65% of the students
in the musical are girls, how many are girls?

Answer 1

52 girls

Explanation:

You have to find the total number of students first which is 80. Then you figure out 65% of 80. You can write a proportion which is 65/100 = x/80, you then solve for x by using the butterfly method.

So,

65/100 = x/80

5200 = 100x

divide by 100 to isolate x

52 out of the 80 students are girls