baconpancakes18 baconpancakes18

01-06-2020
Mathematics

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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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yohanna69 yohanna69

01-06-2020

Answer:

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

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