Question

What is the solution to the proportion?

12/15 = 8/x
(Solve for x.)

A.
10

B.
12

C.
9

D.
16

Answer 1

12/15=8/x => x=15*8/12=> X=5*2=10 So the correct answer is A. Have a nice day!!! ★★

Answer 2

12/15 = 8/x

Cross multiply:
12*x = 8*15
⇒ 12*x= 120
⇒ (12/12)*x = 120/12
⇒ x= 10.

Final answer: x=10.

Hope this helps~