SOLUTION: Tom can make 5 pizzas in 1 hour. Chris can make 7 pizzas in 2 hours. How long will it take (approximately) for Tom and Chris together to make 35 pizzas?
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-> SOLUTION: Tom can make 5 pizzas in 1 hour. Chris can make 7 pizzas in 2 hours. How long will it take (approximately) for Tom and Chris together to make 35 pizzas?
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Question 885303: Tom can make 5 pizzas in 1 hour. Chris can make 7 pizzas in 2 hours. How long will it take (approximately) for Tom and Chris together to make 35 pizzas? Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! Tom can make 5 pizzas in 1 hour. Chris can make 7 pizzas in 2 hours. How long will it take (approximately) for Tom and Chris together to make 35 pizzas?
Let x = time (hours) it takes for both to make 35
then
x(5/1 + 7/2) = 35
x(10 + 7) = 70
x(17) = 70
x = 70/17
x = 4.118
or
x = 4 hours and 7 minutes
