Question

Which expression doesn't belong?

A) 5 * 5 / -5
B) -25 / 5
C) -5 * 5 - 5
D) 25 / -5

Answer 1

The expression that doesn't belong is option C) -5 * 5 - 5 because it simplifies to -30 instead of -5 like the other expressions.

Step-by-step explanation:

The expression that doesn't belong is option C) -5 * 5 - 5.

To determine this, we need to evaluate each expression and compare the results.

A) 5 * 5 / -5 = -5: This expression simplifies to -5 when we perform the calculations in the correct order.

B) -25 / 5 = -5: This expression simplifies to -5 when we divide -25 by 5.

C) -5 * 5 - 5 = -30: This expression simplifies to -30 when we multiply -5 by 5 and then subtract 5.

D) 25 / -5 = -5: This expression simplifies to -5 when we divide 25 by -5.

Therefore, the expression that doesn't belong is option C) -5 * 5 - 5 because it simplifies to -30 instead of -5 like the other expressions.