document.write( "Question 770137: Hi, I`m trying to study some of last years math to keep my mind fresh. I have forgotten some of this material and was wondering if you could help me solve this problem : \"Janet walked to school at 6 km/h and rode home from school at a speed 3 times as fast. If her total traveling time was 1 hour, how many minutes did she spend walking?\" I tried making several different charts, none with success, or at least that make sense to me. Could you please help me? Thanks a lot! :) \n" ); document.write( "

Algebra.Com's Answer #469301 by ramkikk66(644) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Walking speed = 6 km/h\r\n" );
document.write( "Riding speed = 3 times = 18 km/h\r\n" );
document.write( "Let distance to school be x km\r\n" );
document.write( "Time taken to walk to school = x/6 hours (because time = distance / speed)\r\n" );
document.write( "Time taken to ride back = x/18 hours\r\n" );
document.write( "Total time is given to be 1 hour\r\n" );
document.write( "So we get the equation\r\n" );
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document.write( "Simplifying\r\n" );
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document.write( " km\r\n" );
document.write( "Distance to school is 4.5 km\r\n" );
document.write( "Since she walked at 6 kph, how much time did she spend walking? it is\r\n" );
document.write( "Distance / speed = 4.5/6 = 0.75 hours or 45 minutes.\r\n" );
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