THEA THEA Math 2 — Questions and Answers
Question 1: A store sells a jacket originally priced at $120 at a 35% discount. What is the sale price?
- $42.00
- $78.00 (Correct answer)
- $85.00
- $72.00
Correct answer: $78.00
35% of $120 is $42, so the sale price is $120 – $42 = $78.
Question 2: Simplify: 3x² – 5x + 2x² + 7x
- 5x² + 2x (Correct answer)
- 5x² – 2x
- x² + 2x
- 5x² + 12x
Correct answer: 5x² + 2x
Combine like terms: (3x² + 2x²) + (–5x + 7x) = 5x² + 2x.
Question 3: A recipe calls for 2¾ cups of flour. If you want to make 1½ times the recipe, how many cups of flour do you need?
- 3½ cups
- 4 cups
- 4⅛ cups (Correct answer)
- 3¾ cups
Correct answer: 4⅛ cups
2¾ × 1½ = 11/4 × 3/2 = 33/8 = 4⅛ cups.
Question 4: What is the slope of the line passing through the points (–2, 5) and (4, –1)?
- 1
- –1 (Correct answer)
- –2
- 2
Correct answer: –1
Slope = (–1 – 5)/(4 – (–2)) = –6/6 = –1.
Question 5: The area of a triangle is 48 cm². If the base is 12 cm, what is the height?
- 4 cm
- 8 cm (Correct answer)
- 6 cm
- 10 cm
Correct answer: 8 cm
Area = ½ × base × height → 48 = ½ × 12 × h → h = 8 cm.
Question 6: Which of the following is equivalent to 2⁻³?
- –8
- –6
- 1/8 (Correct answer)
- 1/6
Correct answer: 1/8
A negative exponent means take the reciprocal: 2⁻³ = 1/2³ = 1/8.
Question 7: Solve for x: 4(x – 3) = 2x + 6
- x = 3
- x = 6
- x = 9 (Correct answer)
- x = 12
Correct answer: x = 9
4x – 12 = 2x + 6 → 2x = 18 → x = 9.
THEA THEA Math 2
A store sells a jacket originally priced at $120 at a 35% discount.
What is the sale price?