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210hw9 - license plates have no repeated digits(such as...

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Math 210 Homework 9 Due Monday April 25th 1. How many numbers in X = { 1 , 2 , 3 , . . . , 100 } are divisible by at least one of the numbers 2 , 3 , 5 , 7? (Be careful: since 100 is not divisible by 3 or 7, we can’t say that exactly a third or a seventh are divisible by 3 or 7.) 2. If Delaware license plates can be any number from 1 to 999999, how many
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Unformatted text preview: license plates have no repeated digits (such as 18376 or 314259)? About what proportion of cars on the road with Delaware plates should have no repeated digits on their license plate? 1...
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