document.write( "Question 702615: You are traveling in a train. The train has traveled 45 miles from the last stop in 36 minutes. What is the average speed of the train? \n" ); document.write( "
Algebra.Com's Answer #433070 by math-vortex(648)\"\" \"About 
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document.write( "Hi, there--\r\n" );
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document.write( "THE PROBLEM--\r\n" );
document.write( "You are traveling in a train.  The train has traveled 45 miles from the last stop in 36 minutes.\r\n" );
document.write( "What is the average speed of the train?\r\n" );
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document.write( "A SOLUTION--\r\n" );
document.write( "The definition of average speed is total distance traveled (on average) in a given interval of \r\n" );
document.write( "time. Average speed is the speed the train would have gone if it traveled at exactly the same \r\n" );
document.write( "speed throughout its journey. Typically, we would give the average speed of a train in distance \r\n" );
document.write( "per hour. \r\n" );
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document.write( "We know that the train traveled 45 miles in 36 minutes. We can find how many miles the train\r\n" );
document.write( "travelled (on average) in each 1-minute interval by dividing the 45 miles into 36 equal \r\n" );
document.write( "1-minute pieces. We see that 45/36=1.25. On average, the train traveled 1.25 miles for each \r\n" );
document.write( "one-minute interval.\r\n" );
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document.write( "If we want to know the average speed in miles per hour, we multiply  by 60 because there are \r\n" );
document.write( "60 one-minute pieces in each hour. We see that 60*1.25=75. So, on average, the traveled at a \r\n" );
document.write( "speed of 75 miles per hour.\r\n" );
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document.write( "That's it.\r\n" );
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document.write( "Mrs. Figgy\r\n" );
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