SOLUTION: joan can mow a 3-acre field in 4 hours. how long would it take her to mow a 2.9 acre field?

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Question 397687: joan can mow a 3-acre field in 4 hours. how long would it take her to mow a 2.9 acre field?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
h%2F2.9+=+4%2F3 ==> h = 3.87 hours, to 2 decimal places.