SOLUTION: The Randolphs used 12 more gallons of fuel in October than in September and twice as much oil in November as in September. If they used 132 gallons for the three months, how much w

Question 73051: The Randolphs used 12 more gallons of fuel in October than in September and twice as much oil in November as in September. If they used 132 gallons for the three months, how much was used during each month?
Answer by mathman409(67) (Show Source): You can put this solution on YOUR website!
O=October
S=September
N=November
O-12=S
2S=N
S+N+O=132
Since they gave you how to turn O and N to S, Convert It.
S+2S+S+12=132
4S+12=132
4S=132-12
4S=120
S=120/4
S=30
USE S TO FIND N AND O
30=O-12
30+12=O
42=O
O=42
2S=N
60=N
N=60
CHECK
S+N+O=132
30+60+42=132
132=132
O=42
N=60
S=30
YAY! WE DID IT!
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