math
posted by Rachel h on .
Dave can now mow his lawn in 20 minutes less time with the power moxer than with his hand mower. One day the power mower broke down 15 minutes after he started mowing, and he took 25 minutes more time to complete the job with the hand mower. How many minutes does dave take to mow the lawn with the power mower?
*if you could explain how you do this thatd be great because i have a test on it tomorrow..thanks!

math you mow 1/3 of a lawn, and your sister mows 2/5 of the lawn. what is the area of the entire lawn? what is the length of the section left to mow? From 30 ft by width & 121 ft (1/3 in one box , 2/5 in the second box, what is the ft in the third box?