It's actually going to be slightly more effective to split them up.
When you do cardio and ST together, whichever you do second suffers from lowered capacity due to the first. If you lift first, you're tired and don't get as good cardio as you would get fresh. If you cardio first, you're again tired and more at risk of injury when lifting.
So splitting them up means that neither will really suffer from the other having been done just immediately before - you'll get good quality in both.
(But the difference is minimal and if someone can only find time to do them together, that's okay too).