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kompoz [17]
3 years ago
15

Which of the following statements contain a variable? Check all that apply. A. There are 60 seconds in a minute. B. He is 15 yea

rs old. C. Double the number of pages in the book. D. The age of my friend.
Mathematics
1 answer:
sdas [7]3 years ago
8 0

The answer is the option C and the option D, which are:

C. Double the number of pages in the book.

D. The age of my friend.

The explanation for this problem is shown below:

By definition, a variable is an unkown quantity. In the Option A the quantity is given: 60 seconds in a minute. In the option B you know the quantity too, which is 15 years old. But the option C and the option D does not give any quantity, you don't know the number of pages in the book or the age of the friend yet. Therefore, the answer is the options C and D.

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