A jar containing only nickels and dimes contains a total of 60 coins. The value of all the coins in the jar is $4.45. If n represents the number of nickels and d represents the number of dimes, which of the following systems of equations can be used to represent this situation. On+d=4.45 0.05n0.10d = 60 0.05n+0.10d = 60 0.05n+0.10d = 4.45 n+d=60 5n+10 d 4.45 On+d=60 = 0.05n0.10d = 4.45