Which of the following equations shows "twice a number is eighteen?"

Question

Mathematics

Fisher Ward

9 February, 21:56

Which of the following equations shows "twice a number is eighteen?"

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Answers (2)

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Rylee Williams · Answer 1

twice a number is 18. ⇒ 2x = 18

let x be the number.

twice a number = two times a number = 2x

is 18 means equals 18.

so twice a number is 18 ⇒ 2x = 18

Kimberly Atkins · Answer 2

Twice a number is a eighteen expressed as an equation, where the number is 'n' would be:

2n = 18

Solving for n by dividing by 2 on both sides would get us n = 9.

Your final answer is 2n = 18.