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OpenStudy (anonymous):
how many gallons of a 20% salt solution must be mixed with 6 gallons of a 30%solution to make a 22% soution? please help
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OpenStudy (dumbcow):
most teachers use a table for these problems: |dw:1410926132304:dw| the circled row will be the equation used to solve for x ---> .2x + .3(6) = .22(x+6)
OpenStudy (dumbcow):
it may help to get rid of decimals by multiplying everything by 100 --> 20x +30(6) = 22(x+6)
OpenStudy (anonymous):
i got 24 gallons of 20% mixture
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