What is the first step in simplyfing a rational expression
1 answer:
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Answer:
f = [C - 4(h - p)] grams
Step-by-step explanation:
Given that:
C = 4h + 9f + 4p
where: C is the calorie count contained in the serving, h is the number of grams of carbohydrate contained in the serving, f is the number of grams of fat contained in the serving, and p is the number of grams of protein contained in the serving.
To solve for the number of grams of fat, then;
C - 4h - 4p = 9f
C - 4(h - p) = 9f
Divide through by 9, so that:
=
= f
∴ f = [C - 4(h - p)]
The number of grams of fat, f, contained in a serving of food is [C - 4(h - p)]