document.write( "Question 213469: Marc drives 420 miles in 7 hours. What is his average speed in mph? \n" ); document.write( "
Algebra.Com's Answer #161259 by drj(1380)\"\" \"About 
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Marc drives 420 miles in 7 hours. What is his average speed in mph?\r
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\n" ); document.write( "\n" ); document.write( "Step 1. \"speed=%28distance%2Ftime%29\"\r
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\n" ); document.write( "\n" ); document.write( "Step 2 speed = 420 miles/7 hours = 60 mile per hour = 60 mph\r
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\n" ); document.write( "\n" ); document.write( "I hope the above steps were helpful.\r
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\n" ); document.write( "\n" ); document.write( "Good luck in your studies!\r
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\n" ); document.write( "\n" ); document.write( "Respectfully,
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