Which phrase describes an unknown or changeable quantity 3 feet 7 inches

An unknown or changeable quantity is a variable. We use variables when we don't know what a certain amount is, and they're usually referred to as "x," or "y."

For example, if I had a problem where I needed apples, had $15, and knew that each apple was $1.50, I would use a variable to see how many apples I could buy (because right now that's an unknown number). I could solve it by writing 1.50x =15 to find my answer (which is x =10).

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The Project Gutenberg EBook of An Historical Journal of the Transactionsat Port Jackson and Norfolk Island, by John HunterThis eBook is for the use of anyone anywhere at no cost and withalmost no restrictions whatsoever. You may copy it, give it away orre-use it under the terms of the Project Gutenberg License includedwith this eBook or online at www.gutenberg.netTitle: An Historical Journal of the Transactions at Port Jackson and Norfolk IsAuthor: John HunterRelease Date: April 20, 2005 [EBook #15662]Language: EnglishCharacter set encoding: ISO-8859-1*** START OF THIS PROJECT GUTENBERG EBOOK TRANSACTIONS AT PORT JACKSON AND NORFProduced by Col Choat

An Historical Journal of the Transactions at Port Jackson and Norfolk Island1

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An Historical Journal of the Transactions at Port Jackson and Norfolk Island2

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