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)![]() ![]() ![]() You can put this solution on YOUR website! 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? \n" ); document.write( "------------------- \n" ); document.write( "Equation: \n" ); document.write( "sand + sand = sand \n" ); document.write( "0.45x + 0.15*1 = 0.35(x+1) \n" ); document.write( "---- \n" ); document.write( "45x 15*1 = 35x + 35*1 \n" ); document.write( "------- \n" ); document.write( "10x = 20 \n" ); document.write( "x = 2 cu. ft (amt of 45% soil needed) \n" ); document.write( "======================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |