【教学产品中心】SAT阶段测试_Test 4.docx

Josh has 690 in quarters and nickels if he has the

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16. Josh has $6.90 in quarters and nickels. If he has the same number of quarters and nickels, how many quarters does Josh have? y + 3 = 2x 2 – 5x y – 3 = 6x x > 0 17. What is a value of x that satisfies the system of equations above? 18. Carlos runs directly towards Xiao at 15 miles per hour. Xiao walks directly toward Carlos at 3 miles per hour. If they meet after 20 minutes, how far apart were they, in miles, before they started moving? 19. When the positive integer u is divided by 12, the remainder is 8. What is the remainder for the quotient 10 12 u ? 2(a 3 + a 2 + 4a – 8) = 2a 3 + 4a 2 – 5a – 1 20. What is one possible value of a for the equation above?
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Math Test - Calculator 55 MINUTES, 38 QUESTIONS Turn to Section 4 of your answer sheet to answer the questions in this section. ______________________________________________________________________________________ DIRECTIONS For questions 1-30 , solve each problem, choose the best answer from the choices provided, and fill in the corresponding circle on your answer sheet. For questions 31-38 , solve the problem and enter your answer in the grid on the answer sheet. Please refer to the directions before question 31 on how to enter your answers in the grid.You may use any available space in your test booklet for scratch work. NOTES 1. The use of a calculator is permitted. 2. All variables and expressions used represent real numbers unless otherwise indicated. 3. Figures provided in this test are drawn to scale unless otherwise indicated. 4. All figures lie in a plane unless otherwise indicated. 5. Unless otherwise indicated, the domain of a given function f is the set of all real numbers x for which f(x) is a real number. REFERENCE The number of degrees of arc in a circle is 360. The number of radians of arc in a circle is 2p. The sum of the measures in degrees of the angles of a triangle is 180. ______________________________________________________________________________________ 1. If 2x – 6 = 4x + 4, what is the value of x? (A) -5 (B) -1 (C) 1 (D) 5 2. If a and b are both even integers, which of the following must be an odd integer? I. (a + 1)(b + 1) II. (a + 1)(b + 2) III. (a – 1)(b + 1)
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3. A tree is planted when it is 3 feet tall. If the tree's growth rate is linear, which of the following graphs could represent its yearly height? 4. For how many pairs of positive integers (x, y) is 3x + y < 8? 5. The scatterplot above shows the number of Monarch butterflies over a three-week period. Based on the line of best fit, which of the following values is closest to the average daily increase in the number of Monarch butterflies?
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