4 years ago

PR = 9x -31 and QR = 43: Find x

2 answers:

7 0

We can't solve this problem if there is no context given. Since nothing is mentioned, it is safe to assume that PR and QR are line segments. Based on the nomenclature, it may be a collinear system of 3 points: P, Q and R. The equation should be:

PR = PQ + QR
Assume x is reffered to line PQ
(9x - 31) = x + 43
9x - x = 43 + 31 = 74
8x = 74
x = 9.25

oee [108]4 years ago

3 0

Answer: X actually = 13

Step-by-step explanation:

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amy has 24 dolls, 18 of her dolls have blond hair and the rest have black what is the ratio of the number of dolls that have bla

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Step-by-step explanation:

18 : 24

24 - 18 = # of black haired dolls

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Ratio

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