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The polar explorers hiked 7/10 of a mile across the frozen wilderness during the first hour. They saw three polar bears from a distance. During the second hour of their hike, they saw eight polar bears, but only hiked 1/5 mile. How many miles did they hike in the two hours?

 Jan 7, 2022
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7/10 mile + 1/5 mile   =   7/10 + 2/10 = 9/10 mile    ( the number of polar bears is not relevant)

 Jan 7, 2022

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