document.write( "Question 623993: If peanuts cost $.85 per pound and cashews cost $1.05 per pound, how much of each should be used to make a 12 pound mix that cost $.90? \n" ); document.write( "

Algebra.Com's Answer #392597 by htmentor(1343) $\"\"$ $\"About$

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If peanuts cost $.85 per pound and cashews cost $1.05 per pound, how much of each should be used to make a 12 pound mix that cost $.90?
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\n" ); document.write( "Let p = the number of pounds of peanuts
\n" ); document.write( "Then 12 - p = the number of pounds of cashews
\n" ); document.write( "We can write the following expression for the total value of the mixture:
\n" ); document.write( "85p + 105(12-p) = 12*90 [in cents]
\n" ); document.write( "Solve for p:
\n" ); document.write( "85p + 1260 - 105p = 1080
\n" ); document.write( "20p = 180
\n" ); document.write( "p = 9
\n" ); document.write( "So the mix should contain 9 lbs. of peanuts and 3 lbs. of cashews \n" ); document.write( "

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