Mathematics, 07.04.2021 14:10 kalithekittenqueen

ten blocks were placed in a line at 10 cm intervals. ten pennies were placed between the first two blocks, 20 pennies were placed between the next two blocks, then 30 pennies, then 40 pennies, and so on. How much money was used to fill the spaces?

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ten blocks were placed in a line at 10 cm intervals. ten pennies were placed between the first two b...