document.write( "Question 741163: Set up and solve by either substitution or elimination.
\n" ); document.write( "Janet wishes to mix 30 pounds of coffee to sell for $6.00 a pound. To obtain the mixture, she will mmix coffee that sells for $5 a pound with coffee that sells for $7 a pound. How many pounds of each type of coffee should she use?\r
\n" ); document.write( "\n" ); document.write( "Having a really hard time with this one.
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Algebra.Com's Answer #451871 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Janet wishes to mix 30 pounds of coffee to sell for $6.00 a pound. To obtain the mixture, she will mmix coffee that sells for $5 a pound with coffee that sells for $7 a pound. How many pounds of each type of coffee should she use?
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\n" ); document.write( "Equation:
\n" ); document.write( "value + value = value
\n" ); document.write( "5x + 7(30-x) = 6*30
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\n" ); document.write( "5x + 7*30 - 7x = 6*30
\n" ); document.write( "-2x = -1*30
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\n" ); document.write( "x = 15 lbs (amt. of $5.00 coffee needed)
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\n" ); document.write( "30-x = 15 lbs (amt. of $7.00 coffee needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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