Question

3.5X divided by 9 = 4.2 divided by 5. What is X.
I came up with 54.3

Answer 1

2.16

Explanation:

if I understand the description correctly:

3.5*x / 9 = 4.2 / 5

3.5x = 4.2*9 / 5

x = 4.2*9 / 5*3.5

x=2.16