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Martin-Gay, Beginning Algebra, 5ed 22 Strategy for Problem Solving General Strategy for Problem Solving 1Introduction: Understand the problem by: Read.

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Presentation on theme: "Martin-Gay, Beginning Algebra, 5ed 22 Strategy for Problem Solving General Strategy for Problem Solving 1Introduction: Understand the problem by: Read."— Presentation transcript:

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2 Martin-Gay, Beginning Algebra, 5ed 22 Strategy for Problem Solving General Strategy for Problem Solving 1Introduction: Understand the problem by: Read and reread the problem Choose a variable to represent the unknown Construct a drawing, whenever possible 2.Body: Translate the problem into an equation and solve the equation 3.Conclusion: Interpret your result State your conclusion

3 Martin-Gay, Beginning Algebra, 5ed 33

4 44

5 55

6 66

7 77

8 88 Let the variable represent the number you know least about.

9 Martin-Gay, Beginning Algebra, 5ed 99 Let x = Sue’s weight (pounds) x + 15 = Mary’s weight (pounds) Let w = width of rectangle (inches) 2w + 4 = length of rectangle (inches) Let x = Larry’s earnings (dollars) x  56.20 = Joe’s earnings (dollars)

10 Martin-Gay, Beginning Algebra, 5ed 10 (dollars)

11 Martin-Gay, Beginning Algebra, 5ed 11

12 Martin-Gay, Beginning Algebra, 5ed 12 = 2x =.05x = 6.5h =.25q = 16x

13 Martin-Gay, Beginning Algebra, 5ed 13 88 + 0.75x = total cost (dollars)

14 Martin-Gay, Beginning Algebra, 5ed 14 = = p – 0.12p

15 Martin-Gay, Beginning Algebra, 5ed 15

16 Martin-Gay, Beginning Algebra, 5ed 16 I Introduction II Body

17 Martin-Gay, Beginning Algebra, 5ed 17

18 Martin-Gay, Beginning Algebra, 5ed 18 I Introduction II Body

19 Martin-Gay, Beginning Algebra, 5ed 19 I Introduction II Body


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