CPM Homework Banner

Home > MC2 > Chapter 9 > Lesson 9.3.1 > Problem 9-75


Sasha saved from her summer job last summer. She put it in an account that earns simple interest each month. After months, her account is worth . What percent interest did she earn each month?  

Find the amount of money Sasha gained over the months (the interest).

Use the equation , where is the interest, is the principle (original amount she had), is the rate (percent interest per month), and is the time (number of months that have passed).

Solve for .