SOLUTION: The Randolphs used 12 more gal of fuel oil in October than in September and twice as much oil in November as in September. If they used 132 gal for the 3 months, how much was used

SOLUTION: The Randolphs used 12 more gal of fuel oil in October than in September and twice as much oil in November as in September. If they used 132 gal for the 3 months, how much was used

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Question 65180: The Randolphs used 12 more gal of fuel oil in October than in September and twice as much oil in November as in September. If they used 132 gal for the 3 months, how much was used during each month?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
S + O + N = 132
O = S + 12
N = 2S
S + (S + 12) + 2S = 132
4S + 12 = 132
4S = 120
S = 30
0 = 42
N = 60
CHECK
30 + 42 + 60 = 132
OK
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