document.write( "Question 901165: On a four mile hike, you walk the first 2 miles at 3m/hr. How fast will you have to go in order to arrive exactly one hour after you left? \n" ); document.write( "
Algebra.Com's Answer #546529 by josgarithmetic(39625)\"\" \"About 
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RT=D, total must be 4 miles.\r
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\n" ); document.write( "\n" ); document.write( "ALSO time total must be 1 hour.\r
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\n" ); document.write( "\n" ); document.write( "T=D/R\r
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\n" ); document.write( "\n" ); document.write( "\"2%2F3%2B2%2Fr=1\" to account for the 1 hour total time.
\n" ); document.write( "Solve for r.
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