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Which expression is not equal to 18? *

A) 2t, t = 9
B) t - 5, t = 23
C) 3t + 3, t = 5
D) 9t ÷ 3, t = 5
PLEASE ANSWER

1 Answer

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Final answer:

The expression that is not equal to 18 is D) 9t ÷ 3, t = 5.

Step-by-step explanation:

To determine which expression is not equal to 18, we can substitute the value of t in each expression and see if it equals 18 or not.

  • A) 2t, t = 9: 2(9) = 18, so this expression is equal to 18.
  • B) t - 5, t = 23: 23 - 5 = 18, so this expression is equal to 18.
  • C) 3t + 3, t = 5: 3(5) + 3 = 18, so this expression is equal to 18.
  • D) 9t ÷ 3, t = 5: 9(5) ÷ 3 = 15, so this expression is not equal to 18.

Therefore, the expression that is not equal to 18 is D) 9t ÷ 3, t = 5.

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