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19 September, 02:08

On the first practice day, Valterri is able to complete 21 laps in 1 hour, 13 minutes, and 30 seconds. What is Valterri's unit rate for Day 1, in minutes per lap?

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  1. 19 September, 03:34
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    Valterri's unit rate for Day 1 in minutes per lap is 3.5 or 3 minutes and 30 seconds.

    Step-by-step explanation:

    Let's find Valterri's unit rate for Day 1 in minutes per lap, this way:

    Total time = 1 hour, 13 minutes, and 30 seconds

    Total time = 60 minutes + 13 minutes + 30 seconds

    Total time = 73 minutes and 30 seconds

    Total time = 73.5 minutes (30 seconds = 0.5 minutes)

    Number of laps = 21

    Valterri's unit rate for Day 1 in minutes per lap = Total time/Number of laps

    Valterri's unit rate for Day 1 in minutes per lap = 73.5/21

    Valterri's unit rate for Day 1 in minutes per lap = 3.5
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