Question

Dave and Andy take turns in cutting the grass. The lawn is 60 yards long and 40 yards wide.
What is the area of the square?
Dan takes an hour to cut the lawn using an old mower. How many square yards does Dan cut in a minute? Show your work

Andy takes 40 minutes to cut the lawn using a new mower. How many square yards does he cut in a minute? Show your work

If they cut an area that is twice the length and twice the width of their yard, how long will it take each of them? Show how you figured it out.

Answer 1

60*40=2400

the area of the square is 2,400 yards squared

2400 yards dived by 60 minuets is 40. So Dan cuts 40 yards per minuet

2400 yards dived by 40 minuets is 60. So Andy cuts 60 square yards per minuet

60*2= 120     40*2=80    120*80=9600

It would take Dan 240 minutes or 4 hours because 2600 dived by 40 yards per minuet is 240. It would take Andy 160 minutes because 9600  yards squared divided by 60 square yards per minute is 160.