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Questions and Answers
Which of the following statements about rational numbers and integers is correct?
Which of the following statements about rational numbers and integers is correct?
- All rational numbers are integers.
- Integers are a subset of rational numbers. (correct)
- All integers are rational numbers.
- Rational numbers are a subset of integers.
What is the set-builder notation for the set {7, 10}?
What is the set-builder notation for the set {7, 10}?
- {x ∈ ℤ | -5 < x < -1}
- {x ∈ ℕ | x ≥ 21}
- {x ∈ ℤ | x = 7 or x = 10} (correct)
- {x ∈ ℝ | x = 7 or x = 10}
When rounding 12.534 to the nearest tenth, what is the correct answer?
When rounding 12.534 to the nearest tenth, what is the correct answer?
- 12.53
- 12.54
- 12.5 (correct)
- 12.6
What is the greatest common factor of 26 and 52?
What is the greatest common factor of 26 and 52?
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If Chiyo sold 20 pairs of sandals and continued selling in the same ratio as 8 sandals to 20 shoes, how many pairs of shoes would he sell?
If Chiyo sold 20 pairs of sandals and continued selling in the same ratio as 8 sandals to 20 shoes, how many pairs of shoes would he sell?
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Simplify the expression $2x + 3y - 5$, and then evaluate it when $x = 3$ and $y = 2$.
Simplify the expression $2x + 3y - 5$, and then evaluate it when $x = 3$ and $y = 2$.
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