document.write( "Question 250609: Jack usually mows his lawn in 5 hours. Mary can mow the same yard in 3 hours. how much time would it take for them to mow the lawn together? \n" ); document.write( "
Algebra.Com's Answer #182501 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! In one hour Jack mows 1/5 of the lawn \n" ); document.write( "In one hour Mary mows 1/3 of the lawn \n" ); document.write( "so we would think that together they can mow in less than 3 hours \n" ); document.write( "x/5+x/3=1 \n" ); document.write( "15/8 hrs.=1.875 hrs. =1:52.5 hrs. almost two hours\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "15/(8*5)+15/(8*3)=1 \n" ); document.write( "Jack mows 3/8 and Mary mows 5/8 \n" ); document.write( "3/8+5/8=1 \n" ); document.write( " \n" ); document.write( " |