### Home > INT3 > Chapter 10 > Lesson 10.3.3 > Problem 10-190

10-190.

Delaney would like to contribute to the purchase of a used car for school. She invests

What is the number ? If you are not sure, review the introductory paragraph for lesson 10.3.3.

What is the formula for **continuous compounding**? If you are not sure, review problem 10-178.

total amount

*is the principal (initial amount)*