if ZA and ZB are supplementary angles. if mZA = (3x-23) and mZB = (2x-12) then find the measure of ZB

Question

Mathematics

Hope Morrison

31 January, 01:53

if ZA and ZB are supplementary angles. if mZA = (3x-23) and mZB = (2x-12) then find the measure of ZB

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Answers (1)

Know the Answer?

Darryl Bradford · Answer 1

mZB = 74

Step-by-step explanation:

ZB+ZA=180

3X-23+2X-12=180

5X-35=180

5X=180+35

5X=215 (then divide both sides by 5 to x be left alone.)

X=43 ... so ZB=2 (43) - 12

=86-12=74