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Mr Yang’s son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that its total value is $30. How many coins of each type does he hav…
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Mr Yang’s son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that its total value is $30. How many coins of each type does he hav…
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Apr 3, 2020
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Mr Yang’s son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that its total value is $30. How many coins of each type does he have?
Mathematics
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Anton Dementiev
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$2-9
$1-12
It is answer
Nurettin
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Apr 7, 2020
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Nurettin
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