Question 151566: A vending machine will accept nickels and dimes only. The attendant checks the machine and finds a total of 42 coins whose value is $3.40. How many coins of each type were there? Answer by checkley77(12569) (Show Source):
You can put this solution on YOUR website! D+N=42 OR D=42-N
N=16 NUMBER OF NICKELS.
42-16=26 NUMBER OF DIMES.