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mathmath333
 one year ago
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mathmath333
 one year ago
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mathmath333
 one year ago
Best ResponseYou've already chosen the best response.0Using the digits \(1,2,3,4\) find sum of all possible 4 digit number without repetition.

freckles
 one year ago
Best ResponseYou've already chosen the best response.1example: pretend we just had 1,2,3 instead... are they saying they want: 123+132+213+231+312+321

freckles
 one year ago
Best ResponseYou've already chosen the best response.1so I would do the same thing there like start off with the 1 and do rearrangements of the others we should wind up with adding 4(3)(2)(1) arrangements

freckles
 one year ago
Best ResponseYou've already chosen the best response.124 things is a lot to add

mathmath333
 one year ago
Best ResponseYou've already chosen the best response.0this question should have trick

freckles
 one year ago
Best ResponseYou've already chosen the best response.11234 1243 1324 1342 1432 1423 2134 2143 2314 2341 2413 2431 3124 3142 3214 3241 3412 3421 4312 4321 4213 4231 4123 4132

freckles
 one year ago
Best ResponseYou've already chosen the best response.1so for the one's column we would be adding 6 amount of 4's and 6 amount of 3's and 6 amount of 2's and 6 amount of 1's and so on for the other columns

freckles
 one year ago
Best ResponseYou've already chosen the best response.1we will have to carry the 6

freckles
 one year ago
Best ResponseYou've already chosen the best response.1and we would have 60 again but 60+6

freckles
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013353312:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.1hmm I got a extra 6 than you

mathmath333
 one year ago
Best ResponseYou've already chosen the best response.0ur answer is correct ?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013568285:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440013677810:dw also when I wrote this I hope you know that (60)(60)(60)(60) wasn't meant to be multiplication

freckles
 one year ago
Best ResponseYou've already chosen the best response.160 was in the ones digit 60 was in the tens digit 60 was in the hundreds digit 60 was in the thousands digit

freckles
 one year ago
Best ResponseYou've already chosen the best response.1guess we could have done the same thing for 123+132+213+231+312+321 ...we had 1,2,3 there were going to be 6 arrangements there are 3 numbers so 6/3=2 so there was going to be 2(3+2+1) for each column which is 12 so we would have the number (12)(12)(12) <not multiplication; there are digits \[12 \cdot 100+12 \cdot 10+12\]
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