Question

What is the number that should be divided by 20, to get 0.40. Justify your answer.

Answer 1

20/x =0.40
20 = 0.40x
x = 0.40 x 20
x = 8

Answer 2

8

Explanation:

We know that x/20=.4

To find x multiply both sides by 20

this means that

x=8