SOLUTION: Eric and Madison both measured the same trading card. Eric says the car is about 3 inches long. Madison says it is about 2 3/4 inches long. Their teacher says they are both corr

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: Eric and Madison both measured the same trading card. Eric says the car is about 3 inches long. Madison says it is about 2 3/4 inches long. Their teacher says they are both corr      Log On

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Question 848090: Eric and Madison both measured the same trading card. Eric says the car is about 3 inches long. Madison says it is about 2 3/4 inches long. Their teacher says they are both correct. How is that possible?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The word "about" doesn't mean exactly.
There is only one exact measurement and there is mathematical exactness and practical exactness.
3 and 2 3/4 are about the same if I use a ruler that only has 1 inch increments.
They are not as close as 3.9999 and 4.0001 are to each other but that's all a matter of how precise your definition of "about" is.