The weight w of an object varies inversely as the square of the distance d from the center of the earth. At sea level (3978 miles from the center of the earth), an astronaut weighs 110 pounds. Find her weight when she is 139 miles above the surface of the earth and the spacecraft is not in motion.

Question

I know that this is supposed to be set up as a proportion but i'm not exactly sure how to do so because I have set it up every way possible and I still don't get the right answer.

Answer 1

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