Question

3. Twenty-four students brought their permission slips to attend the class field

trip to the local art museum. If this represented eight tenths of the class, how
many students are in the class? Use a bar diagram to solve arithmetically. Then
use an equation to solve algebraically.

Answer 1

x=30

Explanation:

ratio: 8:10 as 24:x

8/10=24/x

10x * 8/10= 10x * 24/x

x * 8 = 10 * 24

8x = 240

8x/8 = 240/8

8x/8 = 30

x = 30