document.write( "Question 518847: Jessica can row 3 miles uptstream in the same time it takes to row 5 miles downstream. If the speed of the current is 10mph, what is the speed of the rowboat in still water? \n" ); document.write( "
Algebra.Com's Answer #345276 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! (r-10)*t=3 \n" ); document.write( "(r+10)*t=5 \n" ); document.write( "rt-10t=3 \n" ); document.write( "rt+10t=5 \n" ); document.write( "2rt=8 \n" ); document.write( "rt=4 \n" ); document.write( "4-10t=3 \n" ); document.write( "1=10t \n" ); document.write( "1/10=t \n" ); document.write( "r/10=4 \n" ); document.write( "r=40 \n" ); document.write( "That's crazy! \n" ); document.write( "Nobody rows 40 mph \n" ); document.write( " \n" ); document.write( " |