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3 years ago

A and B are supplementary angles. If m A = (x + 15)° and m

Mathematics

1 answer:

scoray [572]3 years ago

3 0

Answer:

76 degrees

Step-by-step explanation:

We know that supplementary angles equal 180 degrees. So, set up the equations:

$180=(x+15)+(x-13)\\$

$180=(2x+2)\\$

$178=2x$

$x=89\\$

Then, you just plug 89 back into ZB, and simplify:

$(89-13)\\$

$=76$

So, the measurement of angle ZB is 76 degrees.

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Step-by-step explanation:

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