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malfutka [58]
3 years ago
9

Q is the midpoint of PR. PQ equals 6X -7 and QR equals 5X plus one. Final length of PR.

Mathematics
1 answer:
Elina [12.6K]3 years ago
7 0

Answer:

PR = 82

Step-by-step explanation:

Since Q is the midpoint of PR, then

PQ = QR, that is

6x - 7 = 5x + 1 ( subtract 5x from both sides )

x - 7 = 1 ( add 7 to both sides )

x = 8

Thus

PR = PQ + QR = 6x - 7 + 5x + 1 = 11x - 6

Hence

PR = 11(8) - 6 = 88 - 6 = 82

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