Chapter 3 - Equations and Problem Solving - 3.2 - Equations and Problem Solving - Problem Set 3.2 - Page 107: 70

Lerae’s plan permits 1200 calories

Let X represent the amount of calories that are permitted by Lerae’s plan. Twice the number of calories permitted by Lerae’s diet plan means 2X. 650 calories less than twice the number of calories permitted by Lerae’s diet plan means 2X - 650 Todd is following a 1750-calorie-per-day diet plan. So, we obtain: 2X - 650 = 1750 Add 650 to both sides 2X = 2400 Divide both sides by 2 X = 1200