SOLUTION: Please help me with this word problem.
A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 7% cement shold he mix with 10 bags of 15.5% cement to p
Algebra.Com
Question 278682: Please help me with this word problem.
A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 7% cement shold he mix with 10 bags of 15.5% cement to produce a mix containing 12% cement?
Answer by nyc_function(2741) (Show Source): You can put this solution on YOUR website!
x0.07 + 10(0.155) = (x + 10)(0.12)
Can you solve for x now?