document.write( "Question 402610: . Peanuts cost $0.80 a pound, cashews $1.50 a pound, anf alnuts $1.50 a pound. A store clerk needs to make 6 pound of mixed nuts using these three types so the cost is $6.90. If she wants to use 3 times as much peanuts as cashews, find how much of each type she should use. \n" ); document.write( "
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Peanuts cost $0.80 a pound, cashews $1.50 a pound, anf alnuts $1.50 a pound. A store clerk needs to make 6 pound of mixed nuts using these three types so the cost is $6.90. If she wants to use 3 times as much peanuts as cashews, find how much of each type she should use.\r
\n" ); document.write( "\n" ); document.write( "Peanuts cost $0.80 a pound,..........3x pounds
\n" ); document.write( "cashews $1.50 a pound, ..............x pounds
\n" ); document.write( "and alnuts $1.50 a pound. ...........6-4x
\n" ); document.write( "6 pound of mixed nuts --- $6.90. \r
\n" ); document.write( "\n" ); document.write( "0.8*3x+1.5*x+1.5(6-4x)= 6.90
\n" ); document.write( "2.4x+1.5x+9-6x=6.9
\n" ); document.write( "3.9x-6x+9=6.9
\n" ); document.write( "-2.1x=-2.1
\n" ); document.write( "/-2.1
\n" ); document.write( "x=1 pound -------- cashews
\n" ); document.write( "Peanuuts =====> 3x====>3 pounds
\n" ); document.write( "alnuts=2 pounds
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