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Official Questions: Practice Tests

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Math: d1b66ae6

ID: d1b66ae6 ( SAT Suite Question Bank > Find Questions > Assessment: SAT + Test: Math + Domain: Algebra) Comment: This must be one of the most straightforward level 3 (Hard) questions I have seen. Method 1: Since the question asks about the value of y , and it is clear that the x's will eliminate using the elimination method, we can add the equations and solve directly: -x + y = -3.5 x + 3y = 9.5 4y = 6 y = 6/4 Remember to reduce fractions or use a decimal equivalent, so either 3/2 or 1.5 are correct . Method 2: Plug in the equations to Desmos and graph. Just make sure you input the equations correctly, signs and all. The point of intersection of the two lines clearly shows a y-value of 1.5. Method 3: You could use substitution as a general method to tackle systems of equations, but here, that method can lead to more work than is necessary, and the greater the number of steps involved, the greater the probability of making a mistake. Also, if you want ...

Math: 3cdbf026

ID: 3cdbf026 ( SAT Suite Question Bank > Find Questions > Assessment: SAT + Test: Math + Domain: Algebra) Comment: Any question with more than the two basic variables x and y gets into what I call "alphabet soup" territory. These questions present a façade of difficulty, since there can be so much to seemingly keep track of. However, they are designed to be solved using nothing more than a basic knowledge of algebra. Method 1: Since the question asks for the value of k and one of the two points given, (0, -3), allows us to substitute 0 for x, we can directly solve for k: a(0) + k(-3) = 6 0 - 3k = 6 k = -2 The answer must be (A). Method 2: By the time you input the equation into Desmos and play with the sliders for a and k, you will almost assuredly have taken more time than you should have to solve the question, if you derive a solution at all. Method 3: You could work out the slope and then solve algebraically or graph to work out the solution...

Math: b7e6394d

ID: b7e6394d ( SAT Suite Question Bank > Find Questions > Assessment: SAT + Test: Math + Domain: Algebra) Comment: Think about units. Method 1: The question is asking us about miles , so we want to make sure the answer would be in miles. This provides an excellent point of entry to evaluate the answers themselves. (A) 25 (miles per gallon)/4 (dollars per gallon) * m (miles) = 95 (miles squared per dollar?) Because this is a meaningless unit, we can eliminate this answer choice. In fact, (B) would give us the same nonsensical unit, so it can also fall by the wayside. We can see that the left-hand side of (C) and (D) is identical, so it comes down to what this number on the right-hand side corresponds to. Straighten out (C) so that all the numbers are on the right-hand side, and you will see why it does not make sense either. (C) (4/25)m = 95 --> 4m = 95 * 25 --> m = (95 * 25)/4 We do not need to be exact here, although we could plug in the above to a calculator re...

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