document.write( "Question 638830: I need 150 gallons of 10% solution but all i have is 5% and 20% solution. How much of the 5% and 20% solution do i need in order ti create 150 gallons of 10% solution? \n" ); document.write( "

Algebra.Com's Answer #402416 by Alan3354(69443) $\"\"$ $\"About$

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I need 150 gallons of 10% solution but all i have is 5% and 20% solution. How much of the 5% and 20% solution do i need in order ti create 150 gallons of 10% solution?
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\n" ); document.write( "t = amount of 20%
\n" ); document.write( "f = amount of 5%
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\n" ); document.write( "t + f = 150
\n" ); document.write( "20t + 5f = 10*150\r
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