Lúcia is using energy at a rate of 420420420 kilocalories (/text{kcal}) (kcal) left parenthesis, k, c, a, l, right parenthesis per hour (/text{h}) (h) left parenthesis, h, right parenthesis ice skating.

At what rate is Lúcia using energy in calories per minute / left (/dfrac{/text{cal}}{/text{min}}/right) (

min

cal

) left parenthesis, start fraction, c, a, l, divided by, m, i, n, end fraction, right parenthesis?

Question

Daniel Kemp

Mathematics

16 September, 20:31

Lúcia is using energy at a rate of 420420420 kilocalories (/text{kcal}) (kcal) left parenthesis, k, c, a, l, right parenthesis per hour (/text{h}) (h) left parenthesis, h, right parenthesis ice skating.

At what rate is Lúcia using energy in calories per minute / left (/dfrac{/text{cal}}{/text{min}}/right) (

min

cal

) left parenthesis, start fraction, c, a, l, divided by, m, i, n, end fraction, right parenthesis?

+1

Answers (1)

Know the Answer?

Itsy · Answer 1

Lúcia is using energy at a rate of 420 kcal/h.

To find out the rate per minute we need to transform number:

420 kcal/h = 420 000 cal/h

1h = 60 min

420 000 cal/h = 420 000 cal / (60min) = 7 000 cal / min or 7kcal/min