Math CentralQuandaries & Queries


Question from Sherry, a student:

A 20 foot board is cut into two pieces. If we let x= the length of the longer piece, what is the length of the shorter piece?

Hi Sherry.

If you take x feet away from a 20 foot length, what is left?

Isn't this the just saying in words the same thing as 20 - x says in


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