Mathematics, 07.09.2021 02:10, hannaharsena

There are three piles of dimes, with 15 in the first pile, 21 in the second pile and an unknown amount in the third pile. If each pile is doubled, there will be $9.00 in dimes. How many dimes are
there in the third pile?

Answers: 3

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There are three piles of dimes, with 15 in the first pile, 21 in the second pile and an unknown am...