Final answer:
After following the diet that claims to lose 3 pounds per week, Dana would weigh 164 pounds after 7 weeks, given her starting weight of 185 pounds.
Step-by-step explanation:
The question asks for the weight loss of Dana after 7 weeks on a new diet. The commercial claims a loss of 3 pounds per week.
To calculate Dana's weight after 7 weeks, we can follow these steps:
- Determine the total weight loss by multiplying the weekly weight loss by the number of weeks: 3 pounds/week × 7 weeks = 21 pounds total weight loss.
- Subtract the total weight loss from Dana's starting weight: 185 pounds - 21 pounds = 164 pounds.
Therefore, after 7 weeks on the diet, Dana would weigh 164 pounds, assuming the diet's effectiveness as claimed.