Number operation review 3 pot

... denominators: ᎏ a b ᎏ ϫ ᎏ d c ᎏ ϭ ᎏ b a ϫ ϫ d c ᎏ ᎏ 5 8 ᎏ ϫ ᎏ 3 7 ᎏ ϭ ᎏ 5 8 ϫ ϫ 3 7 ᎏ ϭ ᎏ 1 5 5 6 ᎏ ᎏ 3 4 ᎏ ϫ ᎏ 5 6 ᎏ ϭ ᎏ 3 4 ϫ ϫ 5 6 ᎏ ϭ ᎏ 1 2 5 4 ᎏ –NUMBERS AND OPERATIONS REVIEW 56  Rules for Working with Positive ... ᎏ 5 8 ᎏ Ϭ ᎏ 3 4 ᎏ ? a. ᎏ 1 3 ᎏ ϩ ᎏ 1 2 ᎏ b. ᎏ 3 4 ᎏ ϩ ᎏ 5 8 ᎏ c. ᎏ 1 3 ᎏ ϩ ᎏ 2 3 ᎏ d. ᎏ 1 4 2 ᎏ ϩ ᎏ 1 1 2 ᎏ e. ᎏ 1 6 ᎏ ϩ ᎏ 3 6 ᎏ Answer a. The express...

Ngày tải lên: 07/08/2014, 22:20

... 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. Example For the number set 1, 2, 5, 3, ... 25% ᎏ 1 3 ᎏ 0 .33 3 . . . 33 .3 ෆ % ᎏ 2 3 ᎏ 0.666 . . . 66.6 ෆ % ᎏ 1 1 0 ᎏ 0.1 10% ᎏ 1 8 ᎏ 0.125 12.5% ᎏ 1 6 ᎏ 0.1666 . . . 16.6 ෆ % ᎏ 1 5 ᎏ 0.2 20% Practice Question If ᎏ 2 7 5 ᎏ <...

Ngày tải lên: 07/08/2014, 22:20

... 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 ϩ d ϭ 11 2 (3) ... ϩ 3, which of the following is equal to f(4b)? a. 36 b ϩ 12b b. 36 b ϩ 12 c. 36 b ϩ 3 d. ᎏ 4b 9 ϩ 3 ᎏ e. ᎏ 9 4 ϩ b 3 ᎏ Answer c. If f(x) ϭ 9x ϩ 3, then, for f(4b), 4b...

Ngày tải lên: 07/08/2014, 22:20

... operations with fractions. –NUMBERS AND OPERATIONS REVIEW 49 Odd and Even Numbers An even number is a number that can be divided by the number 2 to result in a whole number. Even numbers have a 2, 4, ... in an odd number? a. even number ϩ even number b. odd number ϫ odd number c. odd number ϩ 1 d. odd number ϩ odd number e. ᎏ even n 2 umber ᎏ Answer b. a, c, and d defi...

Ngày tải lên: 07/08/2014, 22:20

... factors: 9 can be written as 3 ϫ 3, so 18 ϭ 9 ϫ 2 ϭ 3 ϫ 3 ϫ 2. The numbers 3, 3, and 2 are all prime, so we have determined that the prime factorization of 18 is 3 ϫ 3 ϫ 2. We could have also found ... The distance of Ϫ 23 from zero on a number line is 23. | 23| ϭ 23 The absolute value of 23 is 23. The distance of 23 from zero on a number line is 23. The absolute value...

Ngày tải lên: 07/08/2014, 22:20

... Multiplication k  a 1 a 2 a 3 a 4  =  ka 1 ka 2 ka 3 ka 4   a 1 a 2 a 3 a 4  ×  b 1 b 2 b 3 b 4  =  a 1 b 1 + a 2 b 3 a 1 b 2 + a 2 b 4 a 3 b 1 + a 4 b 3 a 3 b 2 + a 4 b 4   a 1 a 2 a 3 a 4  −  b 1 b 2 b 3 b 4  =  a 1 − ... 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...

Ngày tải lên: 07/08/2014, 22:20

... variable. Example 3x ϩ 6y ϭ 24 To isolate the x variable, move 6y to the other side. 3x ϩ 6y Ϫ 6y ϭ 24 Ϫ 6y 3x ϭ 24 Ϫ 6y ᎏ 3 3 x ᎏ ϭ ᎏ 24 Ϫ 3 6y ᎏ Then divide both sides by 3, the coefficient ... Ϫ28 b. Ϫ21 c. Ϫ ᎏ 6 1 3 1 ᎏ d. Ϫ ᎏ 7 3 ᎏ e. 28 Answer b. To solve for y: ᎏ 9 y ᎏ ϭ ᎏ y 1 Ϫ 2 7 ᎏ Find cross products. 12y ϭ 9(y Ϫ 7) 12y ϭ 9y Ϫ 63 12y Ϫ 9y ϭ 9y Ϫ 63 Ϫ 9y 3y ϭϪ 63 y ϭϪ21 C...

Ngày tải lên: 07/08/2014, 22:20

... pair of terms equals ϩ9. There are a few possibilities for these terms: 3 and 3 (because 3 ϫ 3 ϭϩ9), 3 and 3 (because 3 ϫ 3 ϭϩ9), 9 and 1 (because 9 ϫ 1 ϭϩ9), Ϫ9 and Ϫ1 (because Ϫ9 ϫϪ1 ϭϩ9). The ... factor: ᎏ 56a 5 7 ϩ a 21a ᎏ ᎏ 8a 5 a ϩ 1 3a ᎏ Subtract exponents when dividing. 8a 5 Ϫ 1 ϩ 3a 1 Ϫ 1 8a 4 ϩ 3a 0 A base with an exponent of 0 ϭ 1. 8a 4 ϩ 3( 1) 8a 4 ϩ 3 Therefore, th...

Ngày tải lên: 07/08/2014, 22:20

... at 3 instead of 0. Each y value is 3 less than the corresponding y value in y ϭ x 2 , so its equation is therefore y ϭ x 2 Ϫ 3. x y 1 234 56 1 2 3 4 5 –1 –2 –6 –5 –4 3 –1–2 3 4–5–6 x y 1 234 567 1 2 3 4 5 –1 –2 3 –1–2 3 4–5–6–7 –ALGEBRA ... pair of terms equals ϩ9. There are a few possibilities for these terms: 3 and 3 (because 3 ϫ 3 ϭϩ9), 3 and 3 (because 3 ϫ 3 ϭϩ9),...

Ngày tải lên: 07/08/2014, 22:20

... 14) ᎏᎏᎏ (x 2 + 3x Ϫ 10) –ALGEBRA REVIEW 85 Practice Question 1 ,3, 9,27,81, What is the thirty-eighth term of the sequence above? a. 3 38 b. 3 ϫ 1 37 c. 3 ϫ 1 38 d. 1 ϫ 3 37 e. 1 ϫ 3 38 Answer d. 1 ,3, 9,27,81, ... 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 3c 9 ϭ 3c c ϭ 3 Now substitute this answer...

Ngày tải lên: 07/08/2014, 22:20