document.write( "Question 902404: donna's coffee shop makes a blend that is a mixture of two types of coffee. type A coffee costs donna $5.75 per pound, and type B coffee costs $4.50 per pound. this month she made 153 pounds of the blend for a total cost of $772.25. how many pounds of type A coffee did she use
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Algebra.Com's Answer #548095 by richwmiller(17219)\"\" \"About 
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m+p=153,
\n" ); document.write( "5.75*m+4.5*p=772.25
\n" ); document.write( "m=153-p
\n" ); document.write( "5.75*(153-p)+4.5*p=772.25
\n" ); document.write( "879.75-5.75p+4.5*p=772.25
\n" ); document.write( "-1.25*p=-107.5
\n" ); document.write( "p=86.0
\n" ); document.write( "m=153-p
\n" ); document.write( "m=67 lbs at $5.75 and p=86 lbs at $4.5
\n" ); document.write( "check
\n" ); document.write( "67+86=153
\n" ); document.write( "5.75*m+4.5*p=772.25
\n" ); document.write( "5.75*67+4.5*86=772.25
\n" ); document.write( "385.25+387.0=772.25
\n" ); document.write( "772.25=772.25
\n" ); document.write( "ok\r
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