You want to put 520 quarters in coin wrappers. You need one wrapper for every $10 in quarters. Write

You want to put 520 quarters in coin wrappers. You need one wrapper for every $10 in quarters. Write an equation you can use to find how many wrappers w you need

First, calculate the number of quarters in $10:
Quarters in $10 = Value of Quarters / Cost per quarter
Quarters in $10 = 10/0.25
Quarters in $10 = 40

Now find out how many wrappers we need with each wrapper holding 40 quarters:
Number of wrappers = Total quarters / Quarters per wrapper
Number of wrappers =520/40
Number of wrappers = 13