Question

The weight of an object on the moon is

5 of its weight on Earth. If a moon rock
weighs 202 lb on Earth, how much did
the moon rock weigh on the moon?
Give your answer as a simplified mixed number.
Enter the number that belongs in the green box.

Answer 1

40 2/5Ibs or
`40(2)/(5)` lbs

Explanation:

Let weight of object on the moon be represented = Wm

weight of object on the Earth = We

In the above question, we are told:

The weight of an object on the moon is

5 of its weight on Earth.

Hence, mathematically, this is represented as:

5Wm = We

If a moon rock weighs 202 lbs on Earth

5Wm = 202lbs

Wm = 202lbs/5

Wm =
`40(2)/(5)`Ibs

Therefore, the moon rock weighs
`40(2)/(5)`Ibs on the moon.