AlgebraEasy–MediumSolving a one-step inequality with multiplication
Algebra practice question
Which of the following describes all values of x that satisfy 4x ≥ 20?
- A. x ≥ 5Correct
- B. x ≤ 5
- C. x ≥ 80
- D. x ≥ 16
Answer: A. x ≥ 5
Dividing by 4 gives x ≥ 5.
Why the other answers are wrong
- B. x ≤ 5
- The direction is wrong; dividing by a positive number keeps it.
- C. x ≥ 80
- This multiplies instead of dividing.
- D. x ≥ 16
- This subtracts 4.
More Algebra questions
- Easy–Medium
A line passes through the points (0, 3) and (2, 7). What is the slope of the line? - Easy–Medium
A gym charges a $25 one-time signup fee plus $15 per month. Which equation gives the total cost C, in dollars,… - Easy–Medium
If 5(x − 2) = 3x + 4, what is the value of x? - Easy–Medium
A taxi charges a $3.50 base fare plus $2.25 per mile. If a ride costs $19.25 total, how many miles was the rid… - Easy–Medium
The equation of a line is 3x + 2y = 12. What is the y-coordinate of the point where the line crosses the y-axi… - Easy–Medium
A line in the xy-plane passes through the points (1, 5) and (4, 11). What is the y-intercept of the line?
Not affiliated with the College Board. SAT is a trademark of the College Board.