Question 218140
Let  x  =  amt  of  30%
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Let  y  =  amt of   80%
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x+y = 10,,,,,,,x=10-y
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30% *x + 80% *y = 60% *10
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.3x +.8y = 6,,,,,,,,,subst
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.3(10-y) +.8y =6
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3 -.3y +.8y =6
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.5y = 3
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y= 6 quarts,,,,,,,,x= 4 quarts
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.check
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.3(4) +.8(6) = .6(10)
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1.2 +4.8 = 6,,,,,,ok
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