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3 years ago

Points A, B, and C are collinear. Point B is between A and C. BC=8x+709. AB=487+5x. AC=91. Find BC.

Mathematics

1 answer:

Zolol [24]3 years ago

7 0

Answer:

Step-by-step explanation:

Point B is between A and C and the points A, B, and C are collinear so:

AB + BC = AC

487 + 5x + 8x + 709 = 91

13x + 1196 = 91

- 1196 - 1196

13x = - 1105

÷13 ÷13

x = - 85

BC = 8x + 709 = 8(-85) + 709 = - 680 + 709 = 29

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