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5 August, 05:12

Sara is driving two hours to visit her family. For the first hour, she traveled at a speed of 58 miles per hour. Then, in the second hour, she traveled at a speed of 72 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent.

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  1. 5 August, 06:41
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    percentage increase = / frac{increase}{original} * 100%

    increase = old - new = 72 - 58 = 14 miles

    original = 58 miles

    percentage increase = 14/58 x 100 = 24.13% ⇒ 24.1% to nearest tenth
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