SOLUTION: I have a story problem that consists of 2 parts. I can't even begin to figure out the first part so I definately cannot figure out the second. I was hoping there would be someone

Question 175299: I have a story problem that consists of 2 parts. I can't even begin to figure out the first part so I definately cannot figure out the second. I was hoping there would be someone to help me out. Here is the problem:
The weight of an object follows this equation: w=Cr<-2> (the negative 2 is an exponent) where C is a constant, and the r is the distance that the object is from the center of the earth.
1. Solve the equation w=Cr<-2> for r.
2. Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 miles from the center of the earth)
Please help.
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!
(1)
or
multiply each side by
divide each side by w
take the square root of each side

(2)
or
multiply each side by 10
take square root of each side

Does this help??----ptaylor

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