Aserving fish contains 50 g of protein and 4 gof fat. if protein has a caloric calue of 4.0 kcal/g and fat has 9.1 kcal/g, how many kcal are in the serving?

there are 236.4 kcal in the serving fish

Explanation:

1 g of protein has 4.0 kcal thus 50 g will have 50 x 4.0 = 200 kcal

1 g of fat has 9.1 kcal thus 4 g will have 4 x 9.1 = 36.4 kcal

the total kcal present in the serving will be the sum of kcal from protein and fat

200 kcal + 36.4 kcal = 236.4 kcal

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and yes, by the way, i do have a rick & morty tattoo. and no, you cannot see it. it's for the ladies' eyes only- and even then they have to demonstrate that they're within 5 iq points of my own (preferably lower) beforehand. nothin personnel kid