SAT math essentials part 5 docx

... 15 ϭ 35 To isolate the variable, subtract 15 from both sides: 5 c ෆ ϩ 15 Ϫ 15 ϭ 35 Ϫ 15 5͙c ෆ ϭ 20 Next, divide both sides by 5: ᎏ 5 ͙ 5 c ෆ ᎏ ϭ ᎏ 2 5 0 ᎏ ͙c ෆ ϭ 4 Last, square both sides: (͙c ෆ ) 2 ϭ ... fraction with 40 as the denominator: ᎏ 5 8 x ᎏ Ϫ ᎏ 2 5 x ᎏ ϭ (5x ϫ ᎏ 5 8 ᎏ ϫ 5) Ϫ ᎏ ( ( 2 5 x ϫ ϫ 8 8 ) ) ᎏ ϭ ᎏ 2 4 5 0 x ᎏ Ϫ ᎏ 1 4 6 0 x ᎏ Then simplify: ᎏ 2 4 5...

Ngày tải lên: 22/07/2014, 10:22

... when x = –3? a. – 35 b. –21 c. 15 d. 18 e. 33 2. What is the tenth term of the sequence: 5, 15, 45, 1 35 ? a. 5 10 b. ᎏ 3 5 10 ᎏ c. (5 ϫ 3) 9 d. 5 ϫ 3 9 e. 5 ϫ 3 10 3. Wendy tutors math students after ... d by 50 %, multiply d by 1 .5: d = 1.5d. To find 50 % of 1.5d, multiply 1.5d by 0 .5: (1.5d)(0 .5) = 0.75d. Compared to its original value, d is now 75% of what it was. Th...

Ngày tải lên: 22/07/2014, 10:22

... are 25 minutes in which to write your essay. Carefully read the prompt and your assignment. Respond only to the assignment—off-topic essays will receive a zero. CHAPTER Practice Test 1 4 75 Conclusion ... writing process: Planning = 4–6 minutes Drafting = 14–16 minutes Proofreading (Editing) = 3 5 minutes Total: 25 minutes The actual time you spend on each step may vary, but only slightl...

Ngày tải lên: 22/07/2014, 10:22

... ᎏ 2 3 ᎏ p, ᎏ 1 1 5 ᎏ p = 4.8, p = 72. Paul weighs 72 pounds, and Matt weighs ᎏ 3 5 ᎏ (72) = 43.2 pounds. 12. ᎏ 1 4 ᎏ Solve –6b + 2a – 25 = 5 for a in terms of b: –6b + 2a – 25 = 5, –3b + a = 15, a = 15 + ... second equation: ᎏ 15 + b 3b ᎏ + 6 = 4, ᎏ 1 b 5 ᎏ + 3 + 6 = 4, ᎏ 1 b 5 ᎏ = 5, b = –3. Substitute b into the first equation to find the value of a:–6b + 2a – 25 = 5, –6(...

Ngày tải lên: 22/07/2014, 10:22

... 2 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 9...

Ngày tải lên: 22/07/2014, 10:22

... ϭ ᎏ 1 1 5 ᎏ ϩ ᎏ 1 2 5 ᎏ ϩ ᎏ 1 7 6 5 ᎏ ϩ ᎏ 2 8 5 ᎏ Use an LCD of 75. ϭ ᎏ 7 5 5 ᎏ ϩ ᎏ 1 7 0 5 ᎏ ϩ ᎏ 1 7 6 5 ᎏ ϩ ᎏ 2 7 4 5 ᎏ ϭ ᎏ 7 5 5 ᎏ ϩ ᎏ 1 7 0 5 ᎏ ϩ ᎏ 1 7 6 5 ᎏ ϩ ᎏ 2 7 4 5 ᎏ ϭ ᎏ 5 7 5 5 ᎏ The ... ᎏ 5 7 5 5 ᎏ . Now subtract this probability from 1: 1 Ϫ ᎏ 5 7 5 5 ᎏ ϭ ᎏ 7 7 5 5 ᎏ Ϫ ᎏ 5 7 5 5 ᎏ ϭ ᎏ 2 7 0 5 ᎏ ϭ ᎏ 1 4 5 ᎏ The probability of opening...

Ngày tải lên: 22/07/2014, 10:22

... b: 3 ϫ 5 ϫ 5 ϭ 15 ϫ 5 ϭ 75 Answer choice c: 2 ϫ 5 ϫ 9 ϭ 10 ϫ 9 ϭ 90 Answer choice d: 3 ϫ 5 ϫ 9 ϭ 15 ϫ 9 ϭ 1 35 Answer choice e: 5 ϫ 5 ϫ 9 ϭ 25 ϫ 9 ϭ 2 25 Answer choice d equals 1 35, which is the ... (3)(3 2 ) (5) V ≈ (3)(9) (5) V ≈ (27) (5) V ≈ 1 35 Now determine the answer choice with dimensions that produce a volume closest to 1 35: Answer choice a: 3 ϫ 3 ϫ 5 ϭ 9...

Ngày tải lên: 22/07/2014, 10:22

... in proportion: ᎏ 2 1 0 0 ᎏ ϭ ᎏ 2 1 ᎏ ᎏ 1 9 8 ᎏ ϭ ᎏ 2 1 ᎏᎏ 8 4 ᎏ ϭ ᎏ 2 1 ᎏ ᎏ 3 1 0 5 ᎏ ϭ ᎏ 2 1 ᎏ 18 30 20 1 35 75 1 35 75 60° 9 15 10 60° 8 4 –GEOMETRY REVIEW– 128 Example What are the lengths of x and ... these rules to solve problems involving 30-60-90 triangles. 60° 30° 2s s Ί3 s 15 2 ෆ ᎏ 2 15 2 ෆ ᎏ 4 45 15 15 45 a –GEOMETRY REVIEW– 117 Length of an Arc To find the length o...

Ngày tải lên: 22/07/2014, 10:22

... smallest Pythagorean triples: 3:4 :5 3 2 + 4 2 = 5 2 6:8:10 6 2 + 8 2 = 10 2 5: 12:13 5 2 + 12 2 = 13 2 7:24: 25 7 2 + 24 2 = 25 2 8: 15: 17 8 2 + 15 2 = 17 2 810 ? 35 a 4 –GEOMETRY REVIEW– 114 Classifying ... 180° Ϫ 95 Ϫ 50 ° ϭ 35 (because the sum of the measures of the angles of a triangle are 180°). a ϭ 180 Ϫ 95 ϭ 85 (because ∠a and the angle that measures 95 are supplementar...

Ngày tải lên: 22/07/2014, 10:22