Hi,

 Maria and Charlie can deliver 60 papers in 2 hours.  

how long would it take to deliver 99 papers?

  | Cross Multiply to solve for x 

Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
 
 = 

Cross-multiply:

60·x = 99·2
 60x = 198
   x = 
   x = 
   x = 
   x = 3 hours and 18 minutes

Edwin
 

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