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

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> 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      Log On


   

Question 116829: 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) About Me  (Show Source):
You can put this solution on YOUR website!
Septf
Octf+%2B+12
Nov2f
Fuel used for the 3 months
f+%2B+f+%2B+12+%2B+2f
f+%2B+f+%2B+12+%2B+2f+=+132gal
4f+%2B+12+=+132
4f+=+120
f+=+30 gal
Sept30
Oct42
Nov60
check answer
Does 30 + 42 + 60 = 132? yes
OK