Peggy had four times as many quarters as nickels. She had $2.10 in all. How many nickels and how many quarters did she have?
Which of the following equations could be used to solve the problem?
A. n+4n=2.10
B. n+4n=210
C. 5n+100n=2.10
D. 5n+100n=210
That means if you take the number of quarters, and add that to 4 times the number of quarters, you'll get the total amount of money she has ($2.10). Now write that as an equation.