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9 July, 03:04

The music for Jordyn's dance routine lasts for exactly 4 minutes. When Jordyn dances her routine, she starts with her music and finishes 12 seconds before the music ends. What percent of the time the music is playing is Jordyn dancing?

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  1. 9 July, 03:24
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    95%

    Step-by-step explanation:

    4 minutes is 4 * (60 seconds) = 240 seconds.

    The amount of dance time is (240 - 12) seconds = 228 seconds.

    The percentage of music time spent dancing is ...

    ... (228 seconds) / (240 seconds) * 100% = 95%
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