SOLUTION: Fred needs 45 ml of 21% sucrose solution to do his science experiment. He needs to mix a 15% sucrose solution with some 40% sucrose solution to get the 21% solution he wants. How m

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Fred needs 45 ml of 21% sucrose solution to do his science experiment. He needs to mix a 15% sucrose solution with some 40% sucrose solution to get the 21% solution he wants. How m      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1018012: Fred needs 45 ml of 21% sucrose solution to do his science experiment. He needs to mix a 15% sucrose solution with some 40% sucrose solution to get the 21% solution he wants. How much of each should Fred use? (Include units with your numerical answers.)
Fred should use


Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
system%28%2815u%2B40v%29%2F45=21%2Cu%2Bv=45%29

See the lesson, Solve both quantities for two-part mixture, two variables.

You can also solve the problem using just one variable.