SOLUTION: A mixture contains forty ounces of glycol and water and is ten per cent glycol. If the mixture is to be strengthened to twenty-five per cent, how much glycol is to be added?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: A mixture contains forty ounces of glycol and water and is ten per cent glycol. If the mixture is to be strengthened to twenty-five per cent, how much glycol is to be added?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 972604: A mixture contains forty ounces of glycol and water and is ten per cent glycol. If the mixture is to be strengthened to twenty-five per cent, how much glycol is to be added?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+.1%2A40+=+4+ ounces of glycol in mixture
Let +x+ = ounces of glycol to be added
+%28+4+%2B+x+%29+%2F+40+=+.25+
+4+%2B+x+=+10+
+x+=+6+
6 ounces of glycol needs to be added