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suppose you have 30coins that total to $2.10 some of these coins are pennies and the rest are dimes which system of equations can be solved to find the number of each type of coin you have
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suppose you have 30coins that total to $2.10 some of these coins are pennies and the rest are dimes which system of equations can be solved to find the number of each type of coin you have

User Ardweaden
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20 dîmes and 10 penny's
User Maris
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