SOLUTION: solve the folowing proportion for z
-15 /z = -30 /z -5
Algebra.Com
Question 301345: solve the folowing proportion for z
-15 /z = -30 /z -5
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
-15/z=-30/(z-5)
-30Z=-15(Z-5)
-30Z=-15Z+75
-30Z+15Z=75
-15Z=75
Z=75/-15
Z=-5 ANS.
PROOF:
-15/-5=-30/(-5-5)
3=-30/-10
3=3
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