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User Pri
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1 Answer

7 votes

Answer:

48 degrees

Explanation:

1) Solve for x

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


(5x)/(5) =(70)/(5) \\x=14

Therefore, x is equal to 14.

2) Determine angle A


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!

User Eageranalyst
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