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13-12-2015
Mathematics

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Carlos has used 40 cell phone minutes each day for one full week. His cell phone plan allows for a total of 320 minutes per week. Which fraction represents the ratio of cell phone minutes remaining to total minutes?

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14-12-2015

40 minutes*7 days of the week= 280 minutes a week. So, 320-280= 40 minutes left over. 40:320= 1:8. You were correct!

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