SOLUTION: Mary and John can deliver 80 papers in 4 hours. How long would it take them to deliver 36 papers?

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Question 386106: Mary and John can deliver 80 papers in 4 hours. How long would it take them to deliver 36 papers?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!



Hi,         

Let x represent the time to deliver 36 papers

Question SetsUp the Proportion

80%2F4+=+36%2Fx

Cross mulitply to solve for x

 80x = 4*36

   x = 4*36/80 = 1.8 hrs



CHECKING OUR ANSWER

  80/4 = 20 = 36/1.8