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27 July, 17:28

What is the value of k if 7k" minutes past nine" is the same as 8k" minutes to ten"?

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  1. 27 July, 17:44
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    4 minutes

    Step-by-step explanation:

    The value of 7k "minutes past nine" is the same as 8k" minutes to ten".

    Since there are 60 minutes in an hour and 9 and 10 fall in between the same hour, this means that:

    7k = 60 - 8k

    7k + 8k = 60

    15k = 60

    k = 60 / 15

    k = 4 minutes
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