document.write( "Question 597203: . Palmer’s average running speed is 3 kilometers per hour faster than his walking speed. If Palmer can run around a 30-kilometer course in 2 h, how many hours would it take for Palmer to walk the same course? \n" ); document.write( "
Algebra.Com's Answer #378076 by stanbon(75887)\"\" \"About 
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Palmer’s average running speed is 3 kilometers per hour faster than his walking speed. If Palmer can run around a 30-kilometer course in 2 h, how many hours would it take for Palmer to walk the same course?
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\n" ); document.write( "Walking DATA:
\n" ); document.write( "rate = x km/h
\n" ); document.write( "-------------------
\n" ); document.write( "Run DATA:
\n" ); document.write( "rate = (x+3) km/h
\n" ); document.write( "----
\n" ); document.write( "Equation:
\n" ); document.write( "d = rt
\n" ); document.write( "30 km = 2(x+3)
\n" ); document.write( "x+3 = 15 km/hr (running rate)
\n" ); document.write( "x = 12 km/hr (walking speed)
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\n" ); document.write( "? answered
\n" ); document.write( "d = rt
\n" ); document.write( "15 = 12*t
\n" ); document.write( "time = 5/4 = 1 1/4 hrs. (time to walk the course).
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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