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Mathematics, 04.11.2020 09:20 Wanna14ever

Naomi can run 12 miles in 108 minutes. She is thinking about running in two different races, a 9-mile race and a 3-mile race. At her current rate, how many more minutes will it take her to complete the 13-mile race than the 9-mile race. I already know the answer is 36 minutes, but really need to see a step-by-step explanation please.

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