PRACTICE AND PROBLEM SOLVING, PAGES 9–11 17. the product of 5 and p ; 5 groups of p

1 / 3

# PRACTICE AND PROBLEM SOLVING, PAGES 9–11 17. the product of 5 and p ; 5 groups of p - PowerPoint PPT Presentation

PRACTICE AND PROBLEM SOLVING, PAGES 9–11 17. the product of 5 and p ; 5 groups of p 18. 4 decreased by y ; the difference of 4 and y 19. the sum of 3 and x ; 3 increased by x 20. the product of 3 and y ; 3 times y 21. negative 3 times s ; the product of negative 3 and s

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'PRACTICE AND PROBLEM SOLVING, PAGES 9–11 17. the product of 5 and p ; 5 groups of p' - sibley

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

PRACTICE AND PROBLEM SOLVING, PAGES 9–11

17. the product of 5 and p; 5 groups of p

18. 4 decreased by y; the difference of 4 and y

19. the sum of 3 and x; 3 increased by x

20. the product of 3 and y; 3 times y

21. negative 3 times s; the product of negative 3 and s

22. the quotient of r and 5; one-fifth r

23. 14 decreased by t; the difference of 14 and t

24. the sum of x and 0.5; x increased by 0.5

25. t + 20

26. 8n

27. 6 - 5 = 1 28. 5 + 3 = 8

29. 6 ÷ 3 = 2 30. 5 · 6 = 30

31a. h - 40

b. h - 40

(40) - 40 = 0

(44) - 40 = 0

(48) - 40 = 0

(52) - 40 = 0

32. To evaluate an expression is to find its value. To do

this, substitute values for the variables and perform

all the indicated operations.

33. 2x; possible answer: Jim has twice as many aunts

as Carly, who has x aunts.

34. 17 - b; possible answer: Sarah started with

17 apples, but lost b of them.

35. y + 10; possible answer; April had y CDs and then

got 10 more.

36a. air pressure

b. depth below the water in feet.

c. 14.7 + 0.445d

= 14.7 + 0.445(8)

= 14.7 + 3.56

= 18.26 psi

38a. P = 2+ 2w b. P = 2+ 2w

= 2(14) + 2(8)

= 28 + 16

= 44 cm

c. A = · w or w d. A = w

= (8)(14)

= 112 cm 2

40.

x 10x

1 10(1) = 10

5 10(5) = 50

10 10(10) = 100

15 10(15) = 150

44. Both algebraic and numerical expressions contain

numbers and operations, but algebraic expressions

also contain variables.

TEST PREP, PAGE 11

48. C; b fever than 3. 49. F; 12 - 5

50. B; Sarah’s has driven the difference of 25 and x.

CHALLENGE AND EXTEND, PAGE 11

51. 2ab = 2(6)(3)= 36

52. 2x + y = 2(4) + (5) = 13

SPIRAL REVIEW, PAGE 11

55. 180° - (45° + 90°) = 45°

56. 180° - (120° + 40°) = 40°

57. 180° - (30° + 60°) = 90°

58. 25% = 25/100 = 1/4

59. 50% = 50/100 = 1/2

60. 75% = 75/100= 3/4

61. 100% = 100/100= 1

62. add 8 to the previous term; 36, 44, 52

63. multiply the previous term by 3; 729, 2187, 6561

64. Add 1 to the previous term, then add 2, and then

add 3, and so on; 17, 23, 30.