zoeannz zoeannz

12-10-2018
Mathematics

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A garage door opener has a ten number keypad. Codes to open the door must consist of 5 digits with no adjecent digits the sane. How many codes are possible?

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lauraybanez1 lauraybanez1

16-10-2018

1st slot: 10 possibilities

2nd slot: 9 possibilities

3rd slot: 9 possibilities

4th slot: 9 possibilities

5th slot: 9 possibilities

10 * 9 * 9 * 9 * 9 = 65610 Possibilities

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