Select all numbers that satisfy x > 1.
Correct answer(s):
- 2
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What type of equation is 4x – 5 = -13?
Correct answer(s):
- One solution: x = -2
The length of a rectangle is 7 cm more than its width. If the perimeter is 34 cm, what is the width?
Correct answer(s):
- 5 cm
A quantity increases by 30% and becomes 104. What was the original quantity?
Correct answer(s):
- 80
Factor: m^2 – 25.
Correct answer(s):
- (m - 5)(m + 5)
Simplify: t^0, where t ≠ 0.
Correct answer(s):
- 1
Solve the system: x + y = -3 and 2x – y = -3.
Correct answer(s):
- (-2, -1)
What is the slope of the line passing through (4, -3) and (12, 9)?
Correct answer(s):
- 3/2
The sequence begins -7, -3, 1, 5, … . What is the 10th term?
Correct answer(s):
- 29
Solve the inequality: 7x + 9 ≥ 72.
Correct answer(s):
- x ≥ 9
Factor the greatest common factor from 10x – 12.
Correct answer(s):
- 2(5x - 6)
Simplify: (-8x – 7y – 10) + (x + 3y + 6).
Correct answer(s):
- -7x - 4y - 4
Solve for x: 6x + 4 = 14.
Correct answer(s):
- 5/3
A student solves 3(x + 4) as 3x + 4. What is the mistake?
Correct answer(s):
- The 3 was not multiplied by 4
Solve for x: 4(x + 3) + 9 = 41.
Correct answer(s):
- 5
y varies inversely as x. If y = 4 when x = 12, what is the constant of variation?
Correct answer(s):
- 48
Select all numbers that satisfy x ≤ 1.
Correct answer(s):
- 0
- 1
- -1
What type of equation is 3x + 5 = 3x + 7?
Correct answer(s):
- No solution
The length of a rectangle is 9 cm more than its width. If the perimeter is 66 cm, what is the width?
Correct answer(s):
- 12 cm
A quantity decreases by 10% and becomes 108. What was the original quantity?
Correct answer(s):
- 120