Mathematics
Mathematics, 25.06.2021 22:40, mmaglaya1

You have some marbles. When you make a shape of an equilateral triangle, you either have 4 extra, or you need 28 more to complete the shape. How many marbles do you have? How long is a side of the biggest equalateral triangle that you can make make with your marbles?

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You have some marbles. When you make a shape of an equilateral triangle, you either have 4 extra, or...

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