Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 3 - Equations and Problem Solving - 3.3 - More on Solving Equations and Problem Solving - Problem Set 3.3 - Page 116: 66

Answer

There would be 9 grams of fat, 33 grams of carbohydrates, and 6 grams of fiber in the meal.

Work Step by Step

Let X represent the grams of fat. Twice the grams of fat means 2X. 15 more than twice the grams of fat means 2X + 15. Three less than the grams of fat means X - 3 The grams of carbohydrate, fat, and fiber must total 48 grams, so we can set up the following equation: X + 2X + 15 + X - 3 = 48 4X + 12 = 48 Subtract 12 from both sides 4X = 36 Divide both sides by 4 X = 9 There would be 9 grams of fat in the meal. There would be 2X + 15 = 33 grams of carbohydrate in the meal. There would be X - 3 = 6 grams of fiber in the meal
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