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OpenStudy (anonymous):
How many different three-digit numbers can you form using the digits 1, 2, 3, 5, 6, 7, and 9 without repetition?
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OpenStudy (anonymous):
its 7*6*5 =210
OpenStudy (anonymous):
fist place can be filled in 7 ways second place in 6 ways and the third place in 5 ways
OpenStudy (anonymous):
Thanks. I thought that was how to work the problem but wasn't sure. :-)
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