11-05-2015
Mathematics

contestada

How do you find the number of possible choices for a 2 digit password that is greater than 19?

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FrankTodd FrankTodd

11-05-2015

There probably is a formula to do this, but a simple way to find this one is to just think of all two digit numbers. That is 00-99. All you do is count the number of possible choices from 20-99. So there are 80 possible choices.

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