Question

The fifth grade marching band includes boys and girls.

There are 28 boys in the marching band.

The 28 boys are 7/10 of the students in the marching band.


a. What fraction of the students n the marching band are girls?

b. What is the total number of students in the marching band?


a 3/10?

b I do not know

Please answer and explain.

Answer 1

b.
(7/10)x = 28

x = 28 / (7/10)

x = 28 * (10/7)

x = 280 / 7

x = 40

Answer 2

Your answer for a is right.