Which algebraic expression is NOT equivalent to "five times a number"?
A. k x 5
B. k5
C. 5 x k
D. 5k
if B is x^5 then B is the right choice. All of the others involve multiplication.
The algebraic expression that is NOT equivalent to "five times a number" is B. k5.
To determine which algebraic expression is not equivalent to "five times a number," let's break down the phrase "five times a number."
The phrase "five times" means to multiply by five, and the "number" is represented by the variable k.
So, "five times a number" can be expressed as 5 * k.
Now, let's compare this expression to the options provided:
A. k x 5: This expression represents k multiplied by 5. It is equivalent to 5 * k. Therefore, option A is equivalent to "five times a number."
B. k5: This expression represents the variable k followed by the number 5. It does not involve multiplication. So, it is not equivalent to "five times a number."
C. 5 x k: This expression represents 5 multiplied by the variable k. It is equivalent to 5 * k. Therefore, option C is equivalent to "five times a number."
D. 5k: This expression represents 5 multiplied by the variable k. It is equivalent to 5 * k. Therefore, option D is equivalent to "five times a number."
In conclusion, the expression that is NOT equivalent to "five times a number" is option B, k5.