2 years ago

BC = 6x + 6, AB = 8 +9, and AC = 141. Find BC

Mathematics

1 answer:

Dahasolnce [82]2 years ago

3 0

Answer: 60

Step-by-step explanation:

Since AB and BC creates AC, we can add them together to find x, then use that to find the value of BC.

8x+9+6x+6=141 [combine like terms]

14x+15=141 [subtract both sides by 15]

14x=126 [divide both sides by 14]

x=9

Now that we have found the value of x, we can plug that into BC.

6(9)+6 [multiply]

54+6 [add]

Now, we know the length of BC is 60.

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