document.write( "Question 107196: Susan wants to mix 10 pounds of Virginia nuts that cost 3.50 a pound with spanish nuts that cost 3.00 a pound to obtain a mixture that costs 3.40 a poound. How many pounds of spanish nuts should she use? \n" ); document.write( "
Algebra.Com's Answer #77997 by checkley75(3666)\"\" \"About 
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10*3.5+3X=3.4(10+X)
\n" ); document.write( "35+3X=34+3.4X
\n" ); document.write( "3X-3.4X=34-35
\n" ); document.write( "-.4X=-1
\n" ); document.write( "X=-1/-.4
\n" ); document.write( "X=2.5 NUMBER OF POUNNDS OF SPANISH NUTS ARE NEEDED.
\n" ); document.write( "PROOF
\n" ); document.write( "10*3.5+3*2.5=3.4(10+2.5)
\n" ); document.write( "35+7.5=3.4*12.5
\n" ); document.write( "42.5=42.5
\n" ); document.write( "
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