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31-08-2020
Mathematics

contestada

If PQ = 8, QR = 7x, and PR
9x, what is PR?

Respuesta :

shadekiin shadekiin

31-08-2020

Answer:

36

Step-by-step explanation:

PQ + QR = PR

substituting the values we have:

8 + 7x = 9x

8 + 7x - 7x = 9x - 7x

8 = 2x

8/2 = 2x/2

4 = x

Now, for the value of PR:

9 x 4

36

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