How many kilocalories does a runner expend when he runs for 4.0 h and uses 790 Cal/h? How many pieces of pizza that each contain 18 g of protein, 19 g of fat, and 34 g of carbohydrates could be eaten
after the race to replenish these Calories? (Do not round the total number of kcal to the appropriate
signifcant figures when you report your answer. Round to the nearest whole slice of pizza.)
[Hint: One gram of protein or one gram of carbohydrate typically releases about 4 Cal/g, while fat
releases 9 Cal/g.)
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The runner expends
kcal and can eat
pieces of pizza.
it
nces