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17 October, 09:29

Amanda and Alexis live 4 miles apart. They decide to start walking toward each other's houses at the same time. Amanda walks at a rate of 3.5 miles per hour and Alexis walks at a rate of 4 miles per hour. How long will it take for them to meet? Round to the nearest hundredth of an hour. [Remember: D = (r) (t) ]

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  1. 17 October, 12:25
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    The time taken by each person before they meet will be the same. Let that time be t.

    3.5t + 4t = 4

    7.5t = 4

    t = 4/7.5 = 0.53 hour.
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