document.write( "Question 101111: crystal sells coffee. her special blend is a combination of french roast @ $7.50 a lb. and kona deluxe @ $11.50 a lb. how many pounds of kona should she mix with 12 lbs. of french roast to get a blend to be sold for $10.00 a lb.? \n" ); document.write( "

Algebra.Com's Answer #73605 by stanbon(75887) $\"\"$ $\"About$

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crystal sells coffee. her special blend is a combination of french roast @ $7.50 a lb. and kona deluxe @ $11.50 a lb. how many pounds of kona should she mix with 12 lbs. of french roast to get a blend to be sold for $10.00 a lb.?
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\n" ); document.write( "Amt. of french is 12 lbs; value of this is 7.50*12 = 90 dollars
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\n" ); document.write( "Let amt of kona be x lbs; value of this is 11.50x dollars
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\n" ); document.write( "Amt of mixture is 12+x lbs; value is 10(12+x)=120+10x dollars
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\n" ); document.write( "EQUATION:
\n" ); document.write( "90 + 11.50x = 120+10x
\n" ); document.write( "1.5x = 30
\n" ); document.write( "x = 20 lbs. (Amount of kona that must be added to make the blend)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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