lexieloo16 lexieloo16

04-03-2017
Mathematics

contestada

what is the sum of the digits of all 2-digit numbers from 10-99?

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December7th1941 December7th1941

04-03-2017

Huh, well the sum is just adding the numbers together, so the answer is 4905.

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04-03-2017

this took forever to do but 176879

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I need to know how to do this question

k/2-6=28 solve for k show work please