# SOLUTION: How much 3.5% milk and 1.0% milk must be mixed to produce 220 gallons of 2.0% milk?

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 Question 268790: How much 3.5% milk and 1.0% milk must be mixed to produce 220 gallons of 2.0% milk?Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!3.5%=.035 TIMES SOME NUMBER OF GALLONS PLUS 1%=.01 TIMES THE REST OF THE GALLONS (220-X) RESULTS IN THE 2% OR .O2 TIMES THE ENTIRE 220 GALLONS. ---------------------------------------------------------------------------- .035x+.01(220-x)=.02*220 .035x+2.2-.01x=4.4 .025x=4.4-2.2 (.035x-.010x=.025x) .025x=2.2 x=2.2/.025 x=88 gallons of 3.5% milk is used. 220-88=132 gallons of 1% is used. Proof: .035*88+.01*132=.02*220 3.08+1.32=4.4 4.4=4.4