Lúcia is using energy at a rate of 420 kilocalories ( kcal) per hour (h) ice skating. At what rate is Lúcia using energy in calories per minute ((cal)/(min)) ? (" cal ")/(min)

Convert Units: To convert the energy usage rate from kilocalories per hour to calories per minute, we need to know the conversion factors between kilocalories and calories, and between hours and minutes. We know that 1 kilocalorie equals 1,000 calories, and 1 hour equals 60 minutes.Convert to Calories: First, we convert Lúcia's energy usage rate from kilocalories per hour to calories per hour by multiplying by 1,000 (since there are 1,000 calories in a kilocalorie). 420 kcal/h * 1,000 cal/kcal = 420,000 cal/hConvert to Minutes: Next, we convert the energy usage rate from calories per hour to calories per minute by dividing by 60 (since there are 60 minutes in an hour). 420,000 cal/h ÷ 60 min/h = 7,000 cal/min

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Lúcia is using energy at a rate of 420 kilocalories (
kcal) per hour (h) ice skating.
At what rate is Lúcia using energy in calories per minute
((cal)/(min)) ?

(" cal ")/(min)

Lúcia is using energy at a rate of $420$ kilocalories ( $\mathrm{kcal}$ ) per hour (h) ice skating. $\newline$ At what rate is Lúcia using energy in calories per minute $\left(\frac{\mathrm{cal}}{\mathrm{min}}\right)$ ? $\newline$ $\square$ $\frac{\text { cal }}{\min }$

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Convert rates and measurements: customary units

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Q. Lúcia is using energy at a rate of

420

kilocalories (

\mathrm{kcal}

) per hour (h) ice skating.

\newline

At what rate is Lúcia using energy in calories per minute

\left(\frac{\mathrm{cal}}{\mathrm{min}}\right)

\newline

\square

\frac{\text { cal }}{\min }

Convert Units: To convert the energy usage rate from kilocalories per hour to calories per minute, we need to know the conversion factors between kilocalories and calories, and between hours and minutes. We know that $1$ kilocalorie equals $1,000$ calories, and $1$ hour equals $60$ minutes.
Convert to Calories: First, we convert Lúcia's energy usage rate from kilocalories per hour to calories per hour by multiplying by $1,000$ (since there are $1,000$ calories in a kilocalorie). $\newline$ $420$ kcal/h $*$ $1,000$ cal/kcal = $420,000$ cal/h
Convert to Minutes: Next, we convert the energy usage rate from calories per hour to calories per minute by dividing by $60$ (since there are $60$ minutes in an hour). $420,000 \, \text{cal/h} \div 60 \, \text{min/h} = 7,000 \, \text{cal/min}$