SOLUTION: An experiment calls for a 5% salt solution. Only a 3% salt solution and an 6% salt solution are available. How many gallons of each must be combined to obtain 30 gallons of a 5% sa

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Question 1046312: An experiment calls for a 5% salt solution. Only a 3% salt solution and an 6% salt solution are available. How many gallons of each must be combined to obtain 30 gallons of a 5% salt solution ?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
x of 3%
y of 6%

system%28%283x%2B6y%29%2F30=5%2Cx%2By=30%29

Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.
For solving mixture problems, see the lessons
    - Mixture problems
    - More Mixture problems
    - Solving typical word problems on mixtures for solutions
    - Typical word problems on mixtures from the archive
in this site.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.