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What is A = 8x + 74 degrees and B = 2x + 56 degrees solve for x and then find the measure of B

What is A = 8x + 74 degrees and B = 2x + 56 degrees solve for x and then find the measure of B
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What is A = 8x + 74 degrees and B = 2x + 56 degrees solve for x and then find the measure of B

What is A = 8x + 74 degrees and B = 2x + 56 degrees solve for x and then find the-example-1
asked
User John Hazen
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8.2k points

2 Answers

6 votes
Since those lines are parallel, we know that A + B = 180°

So, we have:

8x + 74 + 2x + 56 = 180
10x + 130 = 180
10x = 180 - 130
10x = 50
x = 5

B = 2x + 56
B = 10+56=66

(To check:
A = 8x + 74
A = 40+74=114
114+66=180)
answered
User Lear
by
8.6k points
7 votes

Answer:The correct answer is 66

Step-by-step explanation: I got it right on khan academy

answered
User Sean Amos
by
8.4k points
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