Question

the maximum number of grams of fat (f) that should be in a diet varies directly as a person's weight (w). A person weighing 117lb should have no more than 78g of fat per day. What is the maximum daily fat intake for a person weighing 90 lb?

Answer 1

Let n be the amount of fat for the 90 lb person. Then:
78/117=90/n
78n=10530
n=135g for a 90 lb person
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