AlgebraEasyEvaluating a simple cost model
Algebra practice question
The cost, in dollars, of x apples at a market stall is given by C = 0.5x. What is the cost, in dollars, of 6 apples?
Answer: 3
C = 0.5(6) = 3.
Common wrong answers
- If you answered 12
- 12 divides 6 by 0.5 instead of multiplying.
- If you answered 6.5
- 6.5 adds 0.5 to 6.
- If you answered 0.5
- 0.5 is the price of one apple.
More Algebra questions
- Easy
If 3x + 7 = 22, what is the value of x? - Easy
If x/4 = 9, what is the value of x? - Easy
The function f is defined by f(x) = 6x − 5. What is the value of f(3)? - Easy
The perimeter P of a rectangle with length l and width w is given by P = 2l + 2w. Which of the following expre… - Easy
Which equation defines the function f? - Easy
In the xy-plane, the graph of the equation y = 4x − 12 crosses the x-axis at the point (a, 0). What is the val…
Not affiliated with the College Board. SAT is a trademark of the College Board.