document.write( "Question 894513: mark cycle from home to school at the speed of 16km per hour.he cycles back on the same route at the speed of 15kilometers per hour.the total time taken for the journey is 7*3/4 hours.given that the distance from home to school is d kilometers,and the distane=speed*time,write and solve an equation to find the total distance traveled?
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Algebra.Com's Answer #542099 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! mark cycle from home to school at the speed of 16km per hour. \n" ); document.write( "he cycles back on the same route at the speed of 15kilometers per hour. \n" ); document.write( "the total time taken for the journey is 7*3/4 hours. \n" ); document.write( "given that the distance from home to school is d kilometers,and the distance=speed*time, write and solve an equation to find the total distance traveled? \n" ); document.write( ": \n" ); document.write( "Write a time equation, time = dist/speed \n" ); document.write( ": \n" ); document.write( "go time + return time = total time \n" ); document.write( " \n" ); document.write( "multiply equation by the least common multiple 240, cncel the denominators: \n" ); document.write( "15d + 16d = 240(7.75) \n" ); document.write( "31d = 1860 \n" ); document.write( "d = 1860/31 \n" ); document.write( "d = 60 km one way \n" ); document.write( "total dist = 120 km \n" ); document.write( ": \n" ); document.write( "Check this, find the actual time each way \n" ); document.write( "60/16 = 3.75 hrs \n" ); document.write( "60/15 = 4 hrs \n" ); document.write( "----------------- \n" ); document.write( "total time 7.75 hrs \n" ); document.write( " \n" ); document.write( " |