When a problem uses variables in both the question and the answer choices, don't kill yourself with algebra. Pick a simple number for the variable (like 2 or 5). Solve the problem with that number.
A question asks: "What is the x-coordinate of the vertex of y = 3x^2 - 12x + 15 ?" hard sat questions math
Two classes of 23 students have their final exam scores distributed as shown below. Which statement is true? Dr. Chiu's Class: Scores are spread from 95% to 100%. Ms. Minster's Class: 16 students scored exactly 97%. The standard deviation in Dr. Chiu’s class is higher. When a problem uses variables in both the
(Answer: 14. Notice you don't need to solve for $x$ and $y$ separately—just add the two equations together!) hard sat questions math
