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PLEASE HURRY I NEED HELP RIGHT NOW!!
What is the length of BC?

PLEASE HURRY I NEED HELP RIGHT NOW!! What is the length of BC?-example-1
User Radik
by
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1 Answer

22 votes
22 votes

Answer:

31cm

Explanation:

Add AC and BC together to get AB.

AC = 2x - 13 and

BC = 3x + 4 and

AB = 36 (this is all the given information)

The two smaller pieces can be combined to equal the whole segment.

AC + BC = AB

2x - 13 + 3x + 4 = 36

combine like terms.

5x - 9 = 36

Add 9

5x = 45

Divide by 5.

x = 9

But you're not done because they asked for BC.

BC = 3x + 4

substitute 9 for x.

BC = 3(9) + 4

BC = 27 + 4

BC = 31

BC is 31 cm.

User Fiffy
by
3.1k points