Mr. Wallace measured the length of a board that he was going to cut into 16 equal parts. If each part had to be les than 4 inches long, how long could the board be ?
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x/16 < 4
x < 64
so the board can be less than 64 inches.
x < 64
so the board can be less than 64 inches.
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The board is <64 inches (Less than 64). So I suppose the longest the board could be (if that's what you meant by "how long could the board be?" is 63.99999... inches.