Answer:
Ratio of quarters to dimes = 7 : 8
Or quarters : dimes : : 7 : 8
Step-by-step explanation:
Ben has a collection of 15 coins in the form of Quarters and Dimes.
So Quarters + Dimes = 15
Now there are 7 quarters in the collection then
7 + Dimes = 15
Dimes = 15 - 7 = 8
Therefore, the ratio of quarters to dimes = 7 : 8
Or quarters : dimes : : 7 : 8