SOLUTION: A chemist needs to mix a 75% saltwater solution with a 50% saltwater solution to obtain 10 gallons of a 60% solution. How many gallons of each must be used? I just need to know

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: A chemist needs to mix a 75% saltwater solution with a 50% saltwater solution to obtain 10 gallons of a 60% solution. How many gallons of each must be used? I just need to know       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 451011: A chemist needs to mix a 75% saltwater solution with a 50% saltwater solution to obtain 10 gallons of a 60% solution. How many gallons of each must be used?
I just need to know how to figure this out if you have the time. Thanks.
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
a+b=10
.75a+.5b=.6*10
a=4 b=6
check
3+3=6
ok