Split - Integer and % problems

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Mustangs52

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Jan 1, 2011
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- how many distinct integers between 1000 and 9999 have distinct digits

- by what % above cost must a merchant mark up goods to offer a 20% discount and still make a 20% profit.
 
Re: NCTM December calendar problems.

WHY are you posting at end of a 2009 thread?
 
Mustangs52 said:
- how many distinct integers between 1000 and 9999 have distinct digits

- by what % above cost must a merchant mark up goods to offer a 20% discount and still make a 20% profit.
Click to expand...

problem 1

How many ways you can choose the first digit = 9

How many ways you can choose the second digit = 9 ? Why

How many ways you can choose the third digit = 8 ? why

How many ways you can choose the fourth digit = ??

and continue....

Please show your work, indicating exactly where you are stuck - so that we may know where to begin to help you.
 
Mustangs52 said:
by what % above cost must a merchant mark up goods to offer a 20% discount and still make a 20% profit.
Click to expand...
Hint: 1000 + 500 = 1500; 1500 - 300 = 1200
If that's not enough, you need your teacher...
 
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