Mathematics
Mathematics, 17.03.2020 20:54, robert7248

Cary collected a total of 400 pennies and dimes. 80% of them
are pennies. After donating some pennies, 50% of the
remaining coins were pennies. How many pennies did Cary
donate?
pennies

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Cary collected a total of 400 pennies and dimes. 80% of them
are pennies. After donating some...

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