middleschooler2004 middleschooler2004

18-08-2017
Mathematics

contestada

a display of cereal boxes has one box in the top row, two boxes in second row, three boxes in the third row, and so on, as shown. How many rows of boxes will there be in display of 45 boxes?

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juliecarr juliecarr

18-08-2017

9. 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45

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