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Feliz [49]
3 years ago
6

Will give brainlliest :>

Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer:

48 degrees

Step-by-step explanation:

<u>1) Solve for x</u>

Complementary angles add up to 90 degrees. Therefore, m<A + m<B is equal to 90:

A+B=90\\(2x+20)+(3x)=90

Open up the parentheses

2x+20+3x=90\\5x+20=90

Subtract 20 from both sides

5x+20-20=90-20\\5x=70

Divide both sides by 5

\frac{5x}{5} =\frac{70}{5} \\x=14

Therefore, x is equal to 14.

<u>2) Determine angle A</u>

A=2x+20

Substitute x with 14

A=2(14)+20\\A=28+20\\A=48

Therefore, the measure of angle A in degrees is 48 degrees.

I hope this helps!

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