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Inequalities — SHSAT practice questions

Inequalities on the SHSAT Mathematics section cover writing and solving comparison statements that use less than, greater than, or the inclusive versions of those relations. A student must translate a word problem, such as a budget for buying items, into an inequality, solve a linear inequality, and count the integers or positive integers that satisfy it. The exam typically asks which inequality represents a situation or how many integer values work. Traps include reversing the inequality when multiplying by a negative, mixing open and closed signs, and counting the wrong set of integers. Choices usually show rival inequalities or possible counts.

  • Section: Mathematics 57 questions on the paper
  • 114 practice questions in the app

Sample questions

Question 1

How many integers xx satisfy 2<x534-2<\dfrac{x-5}{3}\le4?

  1. A16
  2. B17
  3. C18
  4. D19
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Answer: C — 18

Multiplying by 3 gives 6<x512-6<x-5\le12. Adding 5 gives 1<x17-1<x\le17, so xx can be any integer from 0 through 17. There are 18 integers.

Question 2

Maya has $15 to spend on notebooks that cost $3 each. Which inequality represents nn, the number of notebooks she can buy?

  1. A3n153n \le 15
  2. B3n153n \ge 15
  3. Cn+315n + 3 \le 15
  4. D15n315n \le 3
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Answer: A — 3n153n \le 15

Each notebook costs $3, so nn notebooks cost 3n3n dollars, which must be at most 15: 3n153n \le 15.

Question 3

How many positive integers xx satisfy 2x3<72x - 3 < 7?

  1. A3
  2. B4
  3. C5
  4. D6
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Answer: B — 4

2x3<72x - 3 < 7 gives 2x<102x < 10, so x<5x < 5. The positive integers less than 5 are 1,2,3,41, 2, 3, 4, which is 4 values.

Practice 114 Inequalities questions in the app

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