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21 December, 11:10

Lucia is using energy at a rate of 420 kilocalories (kcal) per hour (h) ice skating. At what rate is lucla using energy in calories per minute (cals/mins) ?

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  1. 21 December, 11:18
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    1 kilocal. = 1000 cal

    60 min. = 1 hour

    420*1000=420000/60=7000
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