document.write( "Question 519152: Melinda walked a six-mile path in 1 hour 45 minutes. At first she walked at a rate of 4mph then she finished at a rate of 3mph. How far did she walk at 4mph? \n" ); document.write( "
Algebra.Com's Answer #345416 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Melinda walked a six-mile path in 1 hour 45 minutes. At first she walked at a rate of 4mph then she finished at a rate of 3mph. How far did she walk at 4mph? \n" ); document.write( "---- \n" ); document.write( "1st part DATA: \n" ); document.write( "rate = 4 mph ; time = t hrs ; distance = 4t miles \n" ); document.write( "---- \n" ); document.write( "2nd part DATA: \n" ); document.write( "rate = 3 mph ; time = 1.75-t hrs ; distance = 3(1.75-t) miles \n" ); document.write( "=============================================================== \n" ); document.write( "Eqution: \n" ); document.write( "distance + distance = 6 miles \n" ); document.write( "4t + 3(1.75-t) = 6 miles \n" ); document.write( "4t + 5.25 - 3t = 6 \n" ); document.write( "t = 0.75 (time she walked at 4 mph) \n" ); document.write( "---- \n" ); document.write( "Distance at 4 mph = 4*(3/4) = 3 miles \n" ); document.write( "========================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========================== \n" ); document.write( " |