Solve the proportion x/8=30/40
A. x=4
B. x=2
C. x=3
D. x=6
To solve the proportion x/8=30/40, we can cross-multiply:
40x = 8 * 30
40x = 240
Dividing both sides of the equation by 40:
x = 240 / 40
x = 6
The solution to the proportion x/8=30/40 is x=6, so the answer is D. x=6.