SOLUTION: A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 24 bags of 12% cement to produce a mix containing 10% cement.

Algebra ->  Test -> SOLUTION: A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 24 bags of 12% cement to produce a mix containing 10% cement.      Log On


   



Question 724563: A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 24 bags of 12% cement to produce a mix containing 10% cement.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.08x+.12*24=.10(24+x)