Number operation review 2 pdf

... shared by 28 and 21 . Practice Question What are the common factors of 48 and 36? a. 1, 2, and 3 b. 1, 2, 3, and 6 c. 1, 2, 3, 6, and 12 d. 1, 2, 3, 6, 8, and 12 e. 1, 2, 3, 4, 6, 8, and 12 Answer c. ... right of 26 7 on the number line.) Practice Question Which of the following statements is true? a. 25 > 24 b. Ϫ48 > 16 c. 14 > 17 d. 22 > 19 e. Ϫ37 > Ϫ 62 –NUMBER...

Ngày tải lên: 07/08/2014, 22:20

... of x? a. Ϫ6 b. Ϫ ᎏ 2 6 5 ᎏ c. 2 d. 6 e. 50 Answer c. To solve for x: 13x Ϫ 28 ϭ 22 Ϫ 12x 13x Ϫ 28 ϩ 12x ϭ 22 Ϫ 12x ϩ 12x 25 x Ϫ 28 ϭ 22 25 x Ϫ 28 ϩ 28 ϭ 22 ϩ 28 25 x ϭ 50 x ϭ 2 Cross Products You ... ϭ 32, what does a equal in terms of b? a. 4 Ϫ 2b b. 2 Ϫ ᎏ 1 2 ᎏ b c. 32 Ϫ 16b d. 4 Ϫ 16b e. 24 Ϫ 16b Answer a. To solve for a in terms of b: 8a ϩ 16b ϭ 32 8a ϩ 16b Ϫ 16b...

Ngày tải lên: 07/08/2014, 22:20

... ͙4 ෆ ϫ 2 ෆ ϭ 2 ϫ 2 ෆ ϭ 2 2 ෆ 27 ෆ ϭ ͙9 ෆ ϫ ͙3 ෆ ϭ 3 ϫ ͙3 ෆ ϭ 3͙3 ෆ Practice Question Which of the following is equivalent to 2 6 ෆ ? a. 2 3 ෆ ϫ ͙3 ෆ b. 24 ෆ c. d. 2 4 ෆ ϩ 2 2 ෆ e. ͙ 72 ෆ Answer b. ... incorrect because ͙ 72 ෆ ϭ 2 ϫ 36 ෆ ϭ 6 2 ෆ . Answer choice b is correct because 24 ෆ ϭ ͙6 ϫ 4 ෆ ϭ 2 6 ෆ . 2 9 ෆ ᎏ ͙3 ෆ 2 9 ෆ ᎏ ͙3 ෆ 24 ෆ ᎏ ͙8 ෆ ͙a ෆ ᎏ ͙b ෆ –NUMBERS AND...

Ngày tải lên: 07/08/2014, 22:20

... sets: {1 ,2, 3,4,5,6,7,8, }. –NUMBERS AND OPERATIONS REVIEW 59 Example ᎏ 1 8 ᎏ ϩ ᎏ 1 1 2 ᎏ LCD is 24 because 8 ϫ 3 ϭ 24 and 12 ϫ 2 ϭ 24 . ᎏ 1 8 ᎏ ϭ 1 ϫ ᎏ 3 8 ᎏ ϫ 3 ϭ ᎏ 2 3 4 ᎏ Convert fraction. ᎏ 1 1 2 ᎏ ϭ ... ϫ ᎏ 3 8 ᎏ ϫ 3 ϭ ᎏ 2 3 4 ᎏ Convert fraction. ᎏ 1 1 2 ᎏ ϭ 1 ϫ ᎏ 1 2 2 ᎏ ϫ 2 ϭ ᎏ 2 2 4 ᎏ Convert fraction. ᎏ 2 3 4 ᎏ ϩ ᎏ 2 2 4 ᎏ ϭ ᎏ 2 5 4 ᎏ Add numerators on...

Ngày tải lên: 07/08/2014, 22:20

... number. 500% ϭ 5 27 5% ϭ 2. 75 or 2 ᎏ 3 4 ᎏ Here are some conversions you should be familiar with: –NUMBERS AND OPERATIONS REVIEW 62 FRACTION DECIMAL PERCENTAGE ᎏ 1 2 ᎏ 0.5 50% ᎏ 1 4 ᎏ 0 .25 25 % ᎏ 1 3 ᎏ 0.333 ... 4. sum of numbers in set ᎏᎏᎏ quantity of numbers in set –NUMBERS AND OPERATIONS REVIEW 60 The mode of a set of numbers is the number that occurs most frequently. E...

Ngày tải lên: 07/08/2014, 22:20

... a. b. c. d. e. Answer e.  43 71  +  62 52  =  4 + 63+ 2 7 + 51+ 2  =  10 5 12 3   10 5 12 3   24 6 35 2   21 2 −1   11 11 4 4   7 8 8 7   43 71  +  62 52  = –NUMBERS AND OPERATIONS REVIEW 67  Equations To ... a 4 b 4   a 1 a 2 a 3 a 4  −  b 1 b 2 b 3 b 4  =  a 1 − b 1 a 2 − b 2 a 3 − b 3 a 4 − b 4   a 1 a 2 a 3 a 4  +  b 1 b 2...

Ngày tải lên: 07/08/2014, 22:20

... denominator: ᎏ 6 x ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 6 x ϫ ϫ 2 2 ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 1 2 2 x ᎏ Ϫ ᎏ 1 x 2 ᎏ Then simplify: ᎏ 1 2 2 x ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 1 x 2 ᎏ Practice Question Which of the following best simplifies ᎏ 5 8 x ᎏ Ϫ ᎏ 2 5 x ᎏ ? a. ᎏ 4 9 0 ᎏ b. ᎏ 4 9 0 x ᎏ c. ᎏ 5 x ᎏ d. ᎏ 4 3 0 x ᎏ e. ... an integer? a. x 2 Ϫ 27 b. x 2 Ϫ 40 c. x 2 Ϫ 48 d. x 2 Ϫ 64 e. x 2 Ϫ 72 Answer d....

Ngày tải lên: 07/08/2014, 22:20

... corresponding y value in y ϭ x 2 , so its equation is therefore y ϭ x 2 Ϫ 3. x y 123 456 1 2 3 4 5 –1 2 –6 –5 –4 –3 –1 2 3–4–5–6 x y 123 4567 1 2 3 4 5 –1 2 –3 –1 2 3–4–5–6–7 –ALGEBRA REVIEW 84 Answer b. ... denominator: ᎏ 6 x ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 6 x ϫ ϫ 2 2 ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 1 2 2 x ᎏ Ϫ ᎏ 1 x 2 ᎏ Then simplify: ᎏ 1 2 2 x ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 1 x 2 ᎏ Practice Questi...

Ngày tải lên: 07/08/2014, 22:20

... variable: 6͙d ෆ Ϫ 10 ϭ 32 6͙d ෆ Ϫ 10 ϩ 10 ϭ 32 ϩ 10 6͙d ෆ ϭ 42 ϭ ͙d ෆ ϭ 7 (͙d ෆ ) 2 ϭ 7 2 d ϭ 49 42 ᎏ 6 6͙d ෆ ᎏ 6 –ALGEBRA REVIEW 86 c ϩ 2d ϭ 13 c ϩ 2( 11 Ϫ 2c) ϭ 13 c ϩ 22 Ϫ 4c ϭ 13 22 Ϫ 3c ϭ 13 22 ϭ 13 ϩ ... terms. 2, 4,8,16, 32, Term 1 ϭ 2 Ter m 2 ϭ 4, which is 2 ϫ 2 Ter m 3 ϭ 8, which is 2 ϫ 2 ϫ 2 Ter m 4 ϭ 16, which is 2 ϫ 2 ϫ 2 ϫ 2 You can also wr...

Ngày tải lên: 07/08/2014, 22:20

... ϭ 2. x y –ALGEBRA REVIEW 92 c ϩ 2d ϭ 13 c ϩ 2( 11 Ϫ 2c) ϭ 13 c ϩ 22 Ϫ 4c ϭ 13 22 Ϫ 3c ϭ 13 22 ϭ 13 ϩ 3c 9 ϭ 3c c ϭ 3 Now substitute this answer into either original equation for c to find d. 2c ... equations is y ϭ 4 and x ϭ 19. –ALGEBRA REVIEW 89 f(x) ϭ 8x Ϫ 2 becomes f(3) ϭ 8(3) Ϫ 2f(3) ϭ 24 Ϫ 2 ϭ 22 So, when x ϭ 3, the value of the function is 22 . Potential functions m...

Ngày tải lên: 07/08/2014, 22:20