document.write( "Question 901184: Twin brothers, Billy and Bobby, can mow their grandparent's lawn together in 101 minutes. Billy could mow the lawn by himself in 15 minutes less time that it would take Bobby. How long would it take Bobby to mow the lawn by himself? \n" ); document.write( "
Algebra.Com's Answer #546527 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 1/(x-15)+1/x=1/101 \n" ); document.write( "x = 209.78 \n" ); document.write( "x=210 x-15=195\r \n" ); document.write( "\n" ); document.write( "1/(x+15)+1/x=1/101 \n" ); document.write( "x = 195 x+15=210\r \n" ); document.write( "\n" ); document.write( "Much too complicated for this type problem \n" ); document.write( " |