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QisthemidpointofPR. If PQ = x + 9 and QR = 4x, what is PQ?

User Hooknc
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1 Answer

5 votes

Answer:

12

Explanation:

If Q is the midpoint, that means the distance from both P to Q and R to Q must be equal. Set the equations to be equal to one another.

x + 9 = 4x

Subtract x from both sides

3x = 9

x = 3

Now, substitute 3 for x again and put it into one of the equations. It doesn't matter because the answer will be the same.

User Reggaelizard
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