Question

Solve the proportion 35/30 = 28/?
A. 48
B. 23
C. 24
D. 46

Answer 1

C. 24

Explanation:

by algebra:

let "?" be x

35/30 = 28 / x (multiply both sides by 30)

35 = (28/x) (30) (multiply both sides by x)

35x = (28)(30)

35x = 840 (divide both sides by 35)

x = 840 / 35

x = 24