Athenaa Athenaa
  • 03-11-2014
  • Mathematics
Answered

Sasha can mow 3/8 of an acre of grass in 45 Minutes. How many acres of grass does Sasha mow per hour?



Answer :

TylerK
TylerK TylerK
  • 03-11-2014
For this you need to set up a ratio. Sasha can do you 3/8 in 45 minutes, which is 3/8:45, or (3/8)/45. In an hour, she can go x/60. Set the two equal to each other:

(3/8)/45 = x/60

Cross Multiply:

(3/8)*60 = 45*x
45x = 22.5
x = 1/2
She can do half an acre in an hour
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