Question 1136786
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one is a 12.5% concentration and the other is a 5% concentration.How many cubic centimeters of each should she mix to obtain 20 cubic centimeters of an 8% concentration?
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H=12.5
L=5
T=8
M=20
v, amount of more concentrated 12.5% med
M-v, amount of less conc, 5% med


{{{highlight_green(Hv+L(M-v)=TM)}}}
Solve for v; substitute given values; evaluate M-v.