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

Answer:

186 pounds

Step-by-step explanation:

let x = pounds on Earth

set up a proportion:  $\frac{126}{21}$ = $\frac{x}{31}$

cross-multiply:  21x = 3906

divide by 21:   x = 186

Answer 2

Answer:

186 pounds.

Step-by-step explanation:

By proportion 126/21 =  x/31

6 = x/31

x = 6*31

= 186 pounds.