1. Lesson 3-3 Example 4 3-3 Solve. Daniel put $1,500 into a savings account. The simple interest rate is 4.5%. How much interest will Daniel earn in 1 month? in 6 months? in 12 months? Understand Read the problem. Write what you know. Daniel invests $1,500 at an interest rate of 4.5%.

2. Lesson 3-3 Example 4 3-3 Plan Pick a strategy. One strategy is to solve a simpler problem.

3. Lesson 3-3 Example 4 3-3 Solve Use the simple interest formula to calculate the interest for 1 month, 6 months, and 1 year. 1 month I = 1,500 ● 0.045 ● = 5.625 6 months I = 1,500 ● 0.045 ● 0.5 = 33.75 12 months I = 1,500 ● 0.045 ● 1 = 67.50 I = prt

4. Lesson 3-3 Example 4 3-3 Check The amount of interest should increase as the number of months increases.