Question

Given the proportion

the value of x is:
3.
15.
7.5.
None of these choices are correct.

Answer 1

It is 7.5 because 3/4 is equivalent to 0.75 and that is equivalent to 75/100 so divide top and bottom by ten and get 7.5/10 therefore x=7.5.

Answer 2

7.5

Explanation:

3/4 = x/10

=> 3×10 = x×4

=> 30 = 4x

=> x = 30/4

=> x = 7.5