SOLUTION: A baker purchased 15 lb of wheat flour and 12 lb of rye flour for a total cost of $17.55. A second purchase, at the same prices, included 10 lb of wheat flour and 14 lb of rye flou

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A baker purchased 15 lb of wheat flour and 12 lb of rye flour for a total cost of $17.55. A second purchase, at the same prices, included 10 lb of wheat flour and 14 lb of rye flou      Log On


   



Question 1115193: A baker purchased 15 lb of wheat flour and 12 lb of rye flour for a total cost of $17.55. A second purchase, at the same prices, included 10 lb of wheat flour and 14 lb of rye flour. The cost of the second purchase was $15.60. Find the cost per pound of the wheat flour and of the rye flour.

Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
Very typical example for two-variable linear system


prices w and r
Wheat and Rye flours

system%2815w%2B12r=17.55%2C10w%2B14r=15.60%29

Simplify if possible and solve - whatever method you want.