document.write( "Question 1201904: Light roast coffee beans cost seven dollars/pound, while dark roast cost $5.50 per pound. How much of each type of coffee is needed to create 4.50 pounds of a mixture that cost $6.75 per pound? \n" ); document.write( "
Algebra.Com's Answer #836464 by mananth(16946)\"\" \"About 
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Light roast coffee beans cost seven dollars/pound, while dark roast cost $5.50 per pound. How much of each type of coffee is needed to create 4.50 pounds of a mixture that cost $6.75 per pound?\r
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\n" ); document.write( "\n" ); document.write( "Light roast coffee beans cost seven dollars/pound let this be x lbs
\n" ); document.write( " dark roast cost $5.50 per pound ....(4.5-x)lbs\r
\n" ); document.write( "\n" ); document.write( "4.50 pounds of a mixture that cost $6.75 per pound?
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\n" ); document.write( "\n" ); document.write( "Cost equation\r
\n" ); document.write( "\n" ); document.write( "7x+5.5(4.5-x) = 4.5*6.75 (mixture cost)\r
\n" ); document.write( "\n" ); document.write( "7x+24.75-5.5x=30.375
\n" ); document.write( "1.5x =5.625\r
\n" ); document.write( "\n" ); document.write( "x=3.75 lbs Light roast coffee beans
\n" ); document.write( "dark roast coffee beans= balance = 0.75 lbs\r
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\n" ); document.write( "\n" ); document.write( "7.3.75+0.75*5.5 30.375 $\r
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