1. Investment Application A man has $34,000 to invest. He invests some at 17% and the balance at 20%. His total annual interest income is $6245. Find the amount invested at each rate.

2. Solving… Organize pertinent info. Write an equation. Solve the equation. ANSWER THE QUESTION(S). Check Percent as decimal Amt invested Interest earned.17X.17x.2034000-x.2(34000-x) 6245 Equation:

3. Solve Solve the equation. Answer the question(s). Check your answer. ============== $18,500 at 17% 15,500 at 20% ============== Check by.17(18500) +.2(15500) ?= 6245

4. Money Application Sam Abo-zahrah has a box of coins that he uses when playing poker with his friends. The box currently contains 44 coins, consisting of pennies, dimes and quarters. The number of pennies is equal to the number of dimes, and the total value is $4.37. How many of each denomination of coin does he have in the box?

5. Coin Box Organizing Pertinent Info: Number of coins Denomination/ Value of ONE coin Value of coins x.01.01x x.25

6. Coin Box Organizing Pertinent Info: Number of coins Denomination/ Value of ONE coin Value of coins x.01.01x x.10.10x 44 – x - x = 44 - 2x.25.25(44 - 2x)

7. Make an Equation and Solve it Total of all coins is $4.37..01x +.10x +.25(44 - 2x) = 4.37 x + 10x + 25(44 – 2x) = 437 11x + 1100 – 50x = 437 -39x = -663 X = 17

8. Answer the Question and Check X=17 means there are 17 pennies and dimes. 44 – 2(17) gives the number of quarters. There are 10 quarters. To check: Add the money to see if it totals $4.37.

9. In Pairs, Work on your HW problems in Chapter 2 Sections 3 & 4 for practice. 2.3: 31, 37, 43 2.4: 12, 17, 27 (substituting 12 for 11)