How much dimes make $3?

Excuse me, I was wondering if you could help me understand something about currency conversion. Specifically, I'm trying to figure out how many dimes it would take to make up the amount of $3. I'm not too familiar with the breakdown of different coins and their values, so I'm hoping you could shed some light on this for me. I'd really appreciate it if you could provide a clear and concise answer. Thank you in advance for your assistance.