What value of x makes the equation 6x – 17 = 43 true?
Correct answer(s):
- 10
Subject
Mathematics
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Quizzes in Mathematics
For the expression 1/(n – 8), which value of n is not allowed?
Correct answer(s):
- 8
Which expression represents ‘five less than twice a number n’?
Correct answer(s):
- 2n - 5
A linear rule produces these values: x=1 gives y=1, x=2 gives y=-1, x=-2 gives y=7. Which rule matches the table?
Correct answer(s):
- y = -2x + 3
Select all expressions equivalent to 5x + 45.
Correct answer(s):
- 5x + 45
- 5(x + 9)
The sides of a rectangle are (3x + 5) cm and (8x + 4) cm. Which expression represents its area?
Correct answer(s):
- 24x^2 + 52x + 20
4 years from now, Rina’s father’s age will be 2 times Rina’s age. Rina is now 13. How old is her father now?
Correct answer(s):
- 30
Solve the proportion: 3/3 = 13/x.
Correct answer(s):
- 13
Expand: (x + 2)^2.
Correct answer(s):
- x^2 + 4x + 4
Simplify: (m^6)^4.
Correct answer(s):
- m^24
A line has slope 3 and y-intercept 6. Which equation represents the line?
Correct answer(s):
- y = 3x + 6
Find an expression for the nth term of the arithmetic sequence: 0, 6, 12, 18, …
Correct answer(s):
- 6n - 6
Solve the inequality: -5x – 1 ≤ -31.
Correct answer(s):
- x ≥ 6
Evaluate -6x + y – 7 when x = -3 and y = -3.
Correct answer(s):
- 8
Expand and simplify: 5(7x – 1).
Correct answer(s):
- 35x - 5
A shop charges a fixed delivery fee of 9 taka plus 3 taka for each notebook. If the total cost is 21 taka, how many notebooks were ordered?
Correct answer(s):
- 4
Find x if 6x + 15 equals 45.
Correct answer(s):
- 5
For the expression 1/(x – 6), which value of x is not allowed?
Correct answer(s):
- 6
Which expression represents ‘the sum of a number x and 8, divided by 3’?
Correct answer(s):
- (x + 8)/3
A linear rule produces these values: x=3 gives y=-3, x=-1 gives y=1, x=6 gives y=-6. Which rule matches the table?
Correct answer(s):
- y = -x