SOLUTION: A chemist needs 70 milliliters of a 24% solution but has only 18% and 39% solutions available. How many milliliters of each should be mixed to get the desired solution?

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Question 751590: A chemist needs 70 milliliters of a 24% solution but has only 18% and 39% solutions available. How many milliliters of each should be mixed to get the desired solution?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
L=18%
H=39%
T=24%
M=70 milliliters
u= unknown volume for the 18%
v= unknown volume for the 39%

highlight%28%28Lu%2BHv%29%2FM=T%29 and highlight%28u%2Bv=M%29
Solve the system for u and v and then apply the known values to compute u and v.