lexichapa23 lexichapa23

23-10-2017
Mathematics

contestada

Amy runs 6 miles in 45 minutes. At the same rate, how many minutes would she take to run 4 miles?

Respuesta :

altavistard altavistard

25-10-2017

That would be (4/6) of 45 minutes, or 180/6 minutes, or 30 minutes.

You could also find her rate: 6 miles / 45 minutes, or 8 miles / 60 minutes.

Write an equation of ratios:

8 mi 4 mi
---------- = ------------
60 min x

Solving for x: 8x = 240; x = 30 minutes

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