You saved $3,700 to go on vacation during the summer since you will not be taking any classes.

Question

You saved $3,700 to go on vacation during the summer since you will not be taking any classes. After one week at your vacation destination, you notice that you have $3,250 left; after 2 weeks, $2800 left; after 3 weeks, $2350 left; and after 4 weeks, $1900 remain. What information do you need to build the type of equation you specified above? 10. Use the information to create your model (equation). 

Answer 1

Since the amount on hand was $450 less than the week before, all you need to know is whether your expenses will continue to be just the same as they'd been the first 4 weeks. If so, after x weeks, the amount on hand is 3700-450x.