10-04-2018
Mathematics

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Kathie ran for twice as long as she walked. She walked for 10 minutes more than she rode her bike. She walked for 30 minutes.

How many minutes did Kathie exercise altogether?

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10-04-2018

30 x 2 = 60 min running
30 - 10= 20 min biking

30+60+20=110 min, or an hour and 50 minutes

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