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Part A: Solve –vp + 30 < 45 for p. Show your work.

Part B: Solve 3w – 6r = 30 for r. Show your work.

User Arti Singh
by
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2 Answers

3 votes

Answer:

A: -vp + 30 < 45Subtract 30 from both sides. -vp < 15Divide both sides by -v. p > -15/v( when dividing a negative, the < sign must be changed to >)B. 3w - 6r = 30Subtract 3w from both sides. -6r = -3w + 30Divide both sides by -6r = (-3w + 30)/ -6simplify the right sider = (w - 10)/2ORr = (-3w/-6) + (30/-6)r = w/2 - 5

User Pasquale
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9.0k points
6 votes
A: -vp + 30 < 45
Subtract 30 from both sides.
-vp < 15
Divide both sides by -v.
p > -15/v
( when dividing a negative, the < sign must be changed to >)
B. 3w - 6r = 30
Subtract 3w from both sides.
-6r = -3w + 30
Divide both sides by -6
r = (-3w + 30)/ -6
simplify the right side

r = (w - 10)/2
OR
r = (-3w/-6) + (30/-6)
r = w/2 - 5
User Mahoni
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8.2k points