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serg [7]
2 years ago
6

If ∠A and ∠B are complementary, find the value of x given that ∠A=3x-2 and ∠B=x+12

Mathematics
1 answer:
xxMikexx [17]2 years ago
6 0

Answer:

x=20 degrees

Step-by-step explanation:

complementary means the angles equal 90 degrees

so ∠A+∠B=90 degrees

∠A=3x-2 and ∠B=x+12

so subsitute

(3x-2)+(x+12)=90

then solve for x

4x+10=90

4x=80

x=20 degrees is your answer

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