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19-05-2018
Mathematics

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Christine runs 7 miles in 60 minutes. at the same rate, how many miles would she run in 24 minutes?

Respuesta :

19-05-2018

Let x = the unknown amount of miles she would run. We are going to set up a proportion.

[tex] \frac{7 miles}{60 min} = \frac{x miles}{24 min} [/tex]

Now we are going to cross-multiply and solve for x.

60x = 7(24)
60x = 168
x = 168 / 60
x = 2.8

Christine runs 2.8 miles in 24 minutes.

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