SOLUTION: A stamp collection consists of 3,8 and 15 cent stamps. The number of 8 cent stamps is one less than triple the number of 3 cent stamps. The number of 15 cent stamps is six less tha

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A stamp collection consists of 3,8 and 15 cent stamps. The number of 8 cent stamps is one less than triple the number of 3 cent stamps. The number of 15 cent stamps is six less tha      Log On


   

Question 289830: A stamp collection consists of 3,8 and 15 cent stamps. The number of 8 cent stamps is one less than triple the number of 3 cent stamps. The number of 15 cent stamps is six less than the number of 8 cent stamps. The total value of all the stamps is $2.47. Find the number of 8 cent stamps in the collection.
I know the answer I just need help finding an equation to solve it. Thanks.
Found 2 solutions by scott8148, richwmiller:
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
8x + 3[(x + 1) / 3] + 15(x - 6) = 247

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
So is the answer a secret? Maybe the solution should be too.