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harina [27]
3 years ago
7

2. The sum of the measures of angle X and angle Y is 90. If the measure of angle X'is 30 less than

Mathematics
1 answer:
dimulka [17.4K]3 years ago
5 0

Answer:

The measure of angle x is 50 degrees

Step-by-step explanation:

we know that

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

x=2y-30 ----> equation B

solve the system by substitution

substitute equation B in equation A

(2y-30)+y=90

solve for y

3y=90+30

3y=120

y=40^o

Find the measure of angle x

x=2(40)-30=50^o

therefore

The measure of angle x is 50 degrees

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