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Isabel started to run on a treadmill after setting a time for 97 minutes. The display says she finished 39% of her run. How many minutes have gone by? Round your answer to the nearest tenth.

a) 97 minutes
b) 37.9 minutes
c) 55.6 minutes
d) 37 minutes

Answer :

Final answer:

To find the elapsed time, 39% of 97 minutes is calculated resulting in 37.83 minutes. After rounding to the nearest tenth, the elapsed time on the treadmill is 37.8 minutes, which corresponds to option (b) 37.9 minutes.

Explanation:

The question asks how many minutes have elapsed if Isabel has completed 39% of her 97-minute run on the treadmill. To find the elapsed time, we can calculate 39% of 97 minutes. First, convert the percentage to its decimal form by dividing 39 by 100, which gives 0.39. Then, multiply this decimal by the total time of the run (97 minutes) to find the time that has passed.

0.39 × 97 minutes = 37.83 minutes

To report the answer rounded to the nearest tenth, the elapsed time is 37.8 minutes. Therefore, the correct answer would be (b) 37.9 minutes, as this is the given option closest to the calculated value.

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