document.write( "Question 537365: I am taking a practice test so I have the right answer, but i have no idea how to solve this. I have setting up charts, but it doesn't seem to work. I know that rate times time is equal to distance. Please help.\r
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Algebra.Com's Answer #352851 by Edwin McCravy(20054)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "A racetrack measures 10 miles long. If an automobile completes the course in\r\n" );
document.write( "exactly 4 minutes, what is the average rate of speed in miles per hour?\r\n" );
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document.write( "4 minutes is \"4%2F60\"ths or \"1%2F15\"th of an hour.\r\n" );
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document.write( "So it's 10 miles per \"1%2F15\"th hour.\r\n" );
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document.write( "The word \"per\" means \"over\" or \"divided by\", so\r\n" );
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document.write( "\"%2810miles%29%2F%28expr%281%2F15%29hour%29\" or\r\n" );
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document.write( "10miles÷\"expr%281%2F15%29hour\"\r\n" );
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document.write( "Put the word \"hour\" over 1\r\n" );
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document.write( "10miles÷\"%28expr%281%2F15%29%2Aexpr%28hour%2F1%29%29\"\r\n" );
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document.write( "Multiply the fractions:\r\n" );
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document.write( "10miles÷\"expr%281hour%2F15%29\"\r\n" );
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document.write( "Invert and multiply:\r\n" );
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document.write( "10miles×\"expr%2815%2F%22lhour%22%29\"\r\n" );
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document.write( "150\"miles%2F%28hour%29\"\r\n" );
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document.write( "Edwin
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