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Amiraneli [1.4K]
3 years ago
15

The measure of ∠P is five less than four times the measure of ∠Q. If ∠P and ∠Q are supplementary angles, find m∠P

Mathematics
1 answer:
MArishka [77]3 years ago
6 0

Answer:

P=143

Step-by-step explanation:

So, we know that P and Q are supplementary angles. In other words:

\angle P +\angle Q =180

We also know that P is 5 less than 4 times Q. Thus:

\angle P=4\angle Q-5

Substitute the second equation into the first:

(4\angle Q-5)+\angle Q=180

Find Q. Combine like terms:

5\angle Q-5=180

Add 5 to both sides:

5\angle Q=185

Divide both sides by 5:

\angle Q=37

So, Q is 37 degrees.

Q and P are supplementary, which means that P is 180-37 or 143 degrees.

And we're done!

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