poseidonstriden2225 poseidonstriden2225

25-09-2019
Mathematics

contestada

A pair of vertical angles has measures of (4x+9) degrees and 21 degrees. Solve the equation for x. A. 3 B. 7.5 C. 8 D. 48

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beckalexa beckalexa

25-09-2019

The answer would be A. 3. This is because you set both measurements equal.
(4x+9)=21
-9. -9
4x=12
X=3

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