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22-08-2020
Mathematics

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Q is between P and R. PR=145,PQ=8x & QR=11x-7. What is the value of QR?

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coffiebeanie coffiebeanie

22-08-2020

Answer:

QR = 81

Step-by-step explanation:

PR = 145

= PQ + QR

= (8x) + (11x - 7)

8x + 11x - 7 = 145

19x = 145 + 7

19x = 152

x = 8

substitute x=8 into QR:

11(8) - 7 = 81

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