Question

If 3/x= 4/5, then what is the value of x?

A. 12/5
B. 1/5
C. 15/4
D. 19/5
E.3

Answer 1

C

Explanation:

`(3)/(x)=(4)/(5)\\`

Cross multiply,

3*5 = 4*x

15 = 4x

4x = 15 {Divide both sides by 4}

`x=(15)/(4)\\\\`