92.1k views
18 votes
Sally is on a diet to lose some weight. She is losing weight at a rate of 2 pounds

per week. After 6 weeks, her weight is 204 pounds. Write and solve a linear
equation to find how many weeks it will take Sally to reach her target weight of 180
pounds.

User Niktrs
by
6.9k points

1 Answer

8 votes

Answer:

204-2w=180 (where w is the amount of weeks)

w=12

(If you need the total amount, including the 6 weeks, add 6 to 12 to get 18)

Explanation:

Sally is technically starting at 204 pounds and losing 2 per week. Therefore, that can be modeled as 204-2w because if she loses 2 per week you subtract that from the starting weight. You want to then set it equal to 180 and solve for w.


204-2w=180\\-2w=-24\\w=12

User Shandra
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories