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29 June, 13:59

Sarah biker around a lake 2 times in 1/2 hour what was her rate in number of times around the lake per hour?

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  1. 29 June, 14:17
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    2 times / 1/2 hours = x times / 1 hours

    using cross products

    2 * 1 = 1/2 * x

    multiply each side by 2

    2*2*1 = 2 * 1/2 * x

    4 = x

    she can bike 4 times around the lake in 1 hour
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