Question

An object's weight on the moon, M, varies directly as its weight on Earth, E. A person who weighs 55 kilograms on Earth weighs 8.8 kilograms on the moon. What is the moon weight of a person who weighs 90 kilograms on Earth?

Answer 1

this is a direct variation problem. It has a formula! That formula in your case is M = Ek, where k is the constant of variation, and what you have to solve for in order to find out what they want you to find out.

Answer 2

Set it up like this:

Answer 3

8.8=55k?

Answer 4

andd solve for k. Yes...what is k?

Answer 5

k=(8.8/55k)?

Answer 6

yes...what is k? Solve it and get an answer for me ok?

Answer 7

.16

Answer 8

k=.16

Answer 9

yes...now use that k in your next equation. M = Ek, M = 90(.16)

Answer 10

See how that works?

Answer 11

so m=14.4

Answer 12

They want to know the moon weight of a person who weighs 90 on Earth. So solving for the Moon weight, M, you have M = Ek or M = 90(.16).

Answer 13

Thank you for working out the details with me :3

Answer 14

14.4 kilograms it is! That's 31.68 pounds.

Answer 15

YW. TY for the medal!