document.write( "Question 322533: you are running water into the laundry sink to get a mixture that is one half cold water and one half hot water the hot water is slow it runs at a rate of 7.8 liters per minute so you turn it on first. 2 minutes later you turn on the cold water witch runs at a rate of 12.3 liters per minute. At wat time should you turn the two faucets off? \n" ); document.write( "
Algebra.Com's Answer #230897 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! you are running water into the laundry sink to get a mixture that is one half cold water and one half hot water the hot water is slow; it runs at a rate of 7.8 liters per minute so you turn it on first. \n" ); document.write( "2 minutes later you turn on the cold water whitch runs at a rate of 12.3 liters per minute. At wat time should you turn the two faucets off? \n" ); document.write( "------ \n" ); document.write( "Equation: \n" ); document.write( "1st 2 minutes: 2*7.8 = 15.6 liters of hot water \n" ); document.write( "---- \n" ); document.write( "Next \"x\" minutes: 12.3x liters of cold water + 7.8x liters of hot water. \n" ); document.write( "--------------------------- \n" ); document.write( "Equation to get same amount of hot and cold water: \n" ); document.write( "hot = cold \n" ); document.write( "15.6 + 7.8x = 12.3x \n" ); document.write( "--- \n" ); document.write( "4.5x = 15.6 \n" ); document.write( "--- \n" ); document.write( "x = 3.47 minutes \n" ); document.write( "==================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======== \n" ); document.write( " \n" ); document.write( " |