Question

The weight of an object on the moon varies directly as the weight of the object on Earth.A 90-pound object on Earth weights 15 pounds on the moon.if an object weights 156 pounds on Earth, how much does it weights on the moon?

A.23 pounds
B.26 pounds
C.28 pounds
D.936 pounds

Answer 1

Let's use a proportion.

90/15 = 156/x

Cross multiply and solve for x.

Answer 2

....and you should know that gravitational acceleration on the moon is about 1/6 that on the earth surface. Therefore earth weight = 6 times moon weight for the same mass.