Anthony has a cup full of nickels and dimes that he would like to put in his savings account. When he takes the cup to the bank, the banker tells him that the 566 coins in the cup are worth $43.80.
Which of the following systems of equations models the coins in Anthony’s cup? Let n represent nickels, and d represent dimes.

Question

Anthony has a cup full of nickels and dimes that he would like to put in his savings account. When he takes the cup to the bank, the banker tells him that the 566 coins in the cup are worth $43.80.  
Which of the following systems of equations models the coins in Anthony’s cup? Let n represent nickels, and d represent dimes.

anonymous · Answer

write equations for the total number of coins and the total value of the coins.

anonymous · Answer

one for each total

doc.brown · Answer

Here is it in a wordy sort of way:
An amount of nickles and an amount of dimes adds up to $43.80, or 4380 cents.
The number of nickles plus the number of dimes totals 566.

Write it out in a mathy sort of way.

doc.brown · Answer

Hint: nickles are worth $0.05, or 5 cents, but you count them as one coin each.