SOLUTION: It takes Dan 3 hours to mow his lawn. His wife, Kim, takes 4 hours to mow the lawn. How long will it take them working together to mow the lawn?
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Question 471489: It takes Dan 3 hours to mow his lawn. His wife, Kim, takes 4 hours to mow the lawn. How long will it take them working together to mow the lawn?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Dan does 1/3 per hour.
Kim does 1/4 per hour.
Together, they do 1/3 + 1/4 per hour.
Can you finish it?
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