Mathematics, 20.12.2019 23:31 carebear60

Ian has $0.81 worth of pennies and nickels. he has a total of 21 pennies and nickels altogether. write a system of equations that could be used to determine the number of pennies and the number of nickels that ian has. define the variables that you use to write the system.

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Ian has $0.81 worth of pennies and nickels. he has a total of 21 pennies and nickels altogether. wri...