Rosanne has $90 in a savings account that earns 10% annually. The interest is not compounded. How much interest will she earn in 1 year? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.$___
Q. Rosanne has $90 in a savings account that earns 10% annually. The interest is not compounded. How much interest will she earn in 1 year? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.$___
Identify Amount, Rate, Time: Step 1: Identify the principal amount, interest rate, and time.
Apply Interest Formula: Step 2: Apply the formula i=prt to calculate the interest.