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svet-max [94.6K]
3 years ago
14

B is the midpoint of AC, AB = 3x - 8 and BC = x + 4. Find AB

Mathematics
1 answer:
3241004551 [841]3 years ago
8 0
Since b is the midpoint BC is half the line so we can set up this equation

x+4+X+4=3x-8

and then solve like normal

2x+8=3x-8

16=x

once you have x then solve x+4

16 + 4 =20

AB is 20
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The sum of three numbers is 85. The second is 7 more than the first. The third is 2 more than four times the second. Find the nu
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CK
8+15+62=85
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3 years ago
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