document.write( "Question 605329: Hoe much soil containing 45% sand do you need to add to 1ft(cubed) of soil containing 15% sand in order to make a soil containing 35% sand? \n" ); document.write( "
Algebra.Com's Answer #381673 by stanbon(75887)\"\" \"About 
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How much soil containing 45% sand do you need to add to 1ft(cubed) of soil containing 15% sand in order to make a soil containing 35% sand?
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\n" ); document.write( "Equation:
\n" ); document.write( "sand + sand = sand
\n" ); document.write( "0.45x + 0.15*1 = 0.35(x+1)
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\n" ); document.write( "45x 15*1 = 35x + 35*1
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\n" ); document.write( "10x = 20
\n" ); document.write( "x = 2 cu. ft (amt of 45% soil needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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