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13-12-2016
Mathematics

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Find the unit rate, and then use it to solve the problem.

A gardening company plants 10 trees in 2 hours. How long will it take to plant 150 trees?

A. 15 hours

B. 20 hours

C. 5 hours

D. 30 hours

Respuesta :

MarsBCN MarsBCN

13-12-2016

rate = 10/2 = 5 trees per hour

150trees/5 trees per hour = 30 hours

the answer is D = 30 hours

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