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3 years ago

3.2 worksheet angles

Mathematics

1 answer:

KiRa [710]3 years ago

8 0

Answer:

x = 28, y = 23

Step-by-step explanation:

in keeping with working only with the expressions which have the variable 'y'

the 3y angle forms a linear pair with the angle which is corresponding to the 5y-4 angle

therefore, we can say that 5y - 4 = 180 - 3y

solve for 'y': 5y - 4 = 180 - 3y

8y = 184

y = 23

Substitute to find measure of angle 5y-4: 5(23) - 4 = 111 degrees

Now we know that 2x + 13 has to equal 180 - 111 or 69 degrees

solve for 'x': 2x + 13 = 69

2x = 56

x = 28

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