Question

An astronaut who weighs 126 pounds on Earth weighs only 21 pounds on

the moon. How much would a person who weighs 31 pounds on the moon
weigh on Earth? Show your work to receive full credit.

Answer 1

186 pounds.

Explanation:

By proportion 126/21 = x/31

6 = x/31

x = 6*31

= 186 pounds.

Answer 2

186 pounds

Explanation:

let x = pounds on Earth

set up a proportion:
`(126)/(21)` =
`(x)/(31)`

cross-multiply: 21x = 3906

divide by 21: x = 186