SAT Practice Test-Math

SAT Practice Test-Math If 10 + x is more than 10, what is the value of 2x? - correct answer 10 The result when a number is divided by 2 is equal to the result when that same number is divided by 4. What is that number? - correct answer 0 In a certain store, the regular price of a refrigerator is $600. How much money is saved by buying this refrigerator at 20 percent off the regular price rather than buying it on sale at 10 percent off the regular price with an additional discount of 10 percent off the sale price? - correct answer $6 If the function of (f) is defined by f(x)=3x+4, then 2f(x)+4= - correct answer 6x+12 What is the greatest possible area of a triangle with one side of length 7 and another side of length 10? - correct answer 35 A total of 120,000 votes were cast for 2 opposing candidates, Garcia and Perez. If Garcia won by a ratio of 5 to 3, what was the number of votes cast for Perez? - correct answer 45,000 If a positive integer (n) is picked at random from the positive integers less than or equal to 10, what is the probability that 5n+3≤14 ? - correct answer 1/5 If (t) is a number greater than 1, then t² is how much greater than (t) ? - correct answer t(t-1) The height of a right circular cylinder is 5 and the diameter of its base if 4. What is the distance from the center of one base to a point on the circumference of the other base? - correct answer √29 (approximately 5.39) If (p) and (n) are integers such that p>n>0 and p² - n² =12, which of the following can be the value of p - n? I. 1 II. 2 III. 4 - correct answer II only If (x) and (n) are positive integers, which of the following is equivalent to (2x)³ⁿ - (2x)ⁿ ? A. (2x)²ⁿ B. 2ⁿ(x³ - xⁿ) C. (2x)ⁿ[(2x)²ⁿ -1] D. (2x)ⁿ(4xⁿ -1)