document.write( "Question 446364: Palmer's average running speed is 3 Kilometers per hour faster than his walking speed. If Palmer can run around a 20-Kilometer course in 2 hours, how many hourse would it take her Palmer to walk the same course?
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Algebra.Com's Answer #307380 by mananth(16946)![]() ![]() You can put this solution on YOUR website! walking speed =x \n" ); document.write( "running speed = x+3\r \n" ); document.write( "\n" ); document.write( "d=rt \n" ); document.write( "20=(x+3)*2 \n" ); document.write( "20=2x+6 \n" ); document.write( "20-6=2x \n" ); document.write( "14=2x \n" ); document.write( "x=7 kmph running speed \n" ); document.write( "so walking speed = 4 kmph (7-3) \n" ); document.write( "d=rt \n" ); document.write( "d=20 \n" ); document.write( "r=4 \n" ); document.write( "20=4*t \n" ); document.write( "20/4=t \n" ); document.write( "t= 5 hours walking time for 20 km \n" ); document.write( " \n" ); document.write( " |