How often do 9/10 month olds nurse?

Alexa • Micah Tyler born 08/31/17 💙
We are taking a family vacation when my son is almost 10 months old and it's a 10-12 hour drive. I don't like nursing in public but it'll be a week of activities in Colorado. I'm not familiar with older babies so what will his eating schedule be like and how often should he nurse? Like are they mainly eating solids by then? I'm clueless and want to be prepared.