Gabrielle M. answered • 09/02/22
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Erika F.
asked • 09/02/22Q is the midpoint of PR. If PQ = 7x and QR = 10x − 10, what is QR?
Geometry
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Shiraz S. answered • 09/05/22
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New to Wyzant
4 years experience in math and biology tutoring
Q is the midpoint of [PR] so [PQ]=[QR]
7x=10x-10
7x-10x=-10
-3x=-10
x=-10/-3=10/3
now QR=10x-10=10(10/3) - 10
QR= 100/3 - 30/3 = 70/30 = 2.33
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