+1438 Jill has a coin collection. She has 21 coins in all. She has 4 times as many pennies as nickels. She has 1 more dime than the number of nickels. She has 1 less quarter than the number of nickels. How many of each coin does she have?
a 12 pennies, 3 nickels, 4 dimes, and 2 quarters
b) 16 pennies, 4 nickels, 5 dimes, and 3 quarters
c) 12 pennies, 3 nickels, 2 dimes, and 4 quarters
d) 16 pennies, 4 nickels, 3 dimes, and 5 quarters
+36916 21 coins
n
p = 4n
d = n+1
q = n-1
n + 4n + n+1 + n-1 = 21
7n = =21
n = 3
then p = 12 d = 4 q = 2
