document.write( "Question 451567: The number of persons needed to do a job varies directly as the amount of work to be done and inversely as the time in which the job must be done.If 3 people can mow 300m squared of grass is 0.5 h , how long will it take 7 people to mow 7000m squared of grass? \n" ); document.write( "
Algebra.Com's Answer #310965 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! 300m/3 people=100m/person per 1/2 hour or 200m/person per hour. \n" ); document.write( "7000m/(7 people x 200m/person per hour)=7000/1400=5 hours.. \n" ); document.write( " |