1. GOAL: USE A LINEAR EQUATION TO SOLVE A REAL LIFE PROBLEM. ELIGIBLE CONTENT: A1.1.2.1.1 / A1.1.2.1.2 / A1.1.2.1.3 2-2 & 2-3 WORD PROBLEMS

2. WORD PROBLEMS 1.Assign labels to unknowns 2.Write an equation 3.Solve the equation 4.Check your answer

3. WORD PROBLEM #1 On January 22, 1943, the temperature in Spearfish, South Dakota fell from 54°F at 9 AM to -4°F at 9:27 AM. By how many degrees did the temperature fall? x = degrees change -4 = 54 – x 58°F

4. WORD PROBLEM #2 Your bank balance is $42. If you write a check to buy a pair of shoes, your balance would be -$5. How much do the shoes cost? x = cost of shoes 42 – x = -5 $47

5. WORD PROBLEM #3 Ricardo has driven 468 miles. He drove about of the distance to Memphis. About how many miles will he drive all together?

6. WORD PROBLEM #4 A strobe light emits 14 flashes per second. How long will it take to emit 4200 flashes. x = seconds 14x = 4200 300 seconds or 5 minutes

7. A.4 h B.6 h C.8 h D.16 h Water flows through a hose at a rate of 5 gallons per minute. How many hours will it take to fill a 2400-gallon swimming pool?

8. MORE WORD PROBLEMS 1.Three times Andy’s age plus 2 is 17. x = Andy’s age 3x + 2 = 17 x = 5 years old

9. MORE WORD PROBLEMS 2.The number of CDs sold last month was 4 more than 4 times the number of CDs sold this month. Last month, 116 CDs were sold. x = number of CDs sold this month 116 = 4 + 4x x = 28 CDs

10. MORE WORD PROBLEMS 3.Twelve less than the product of a number and 5 is 28. x = missing number 5x – 12 = 28 x = 8

11. MORE WORD PROBLEMS 4.The height of a plant is 5 more inches than twice the height of the plant last month. The plant is 18 inches this month. x = height of plant last month 18 = 5 + 2x x = 6.5 inches

12. MORE WORD PROBLEMS

13. PRACTICE Worksheet – “2-3 Word Problems”

14. HOMEWORK Worksheet – “2-3 Word Problems Homework”