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faust18 [17]
2 years ago
9

01.10 Writing an Effective Summary Assignment

English
1 answer:
Aloiza [94]2 years ago
3 0

Answer:

Answer:

The measure of angle x is 50 degrees

Step-by-step explanation:

we know that

x+y=90x+y=90 ----> equation A

x=2y-30x=2y−30 ----> equation B

solve the system by substitution

substitute equation B in equation A

(2y-30)+y=90(2y−30)+y=90

solve for y

3y=90+303y=90+30

3y=1203y=120

y=40^oy=40

o

Find the measure of angle x

x=2(40)-30=50^ox=2(40)−30=50

o

therefore

The measure of angle x is 50 degrees

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