Alex is driving across the country. He needs to drive 10 hours a day for 11 days in order to get to his

destination. So far, he has driven 75 hours. How many more hours of driving does Alex have?

Step-by-step explanation:

It's asking how many hours are left after 75 is done. Well, we need to know how many it started with. We know it was 10 hours a day for 11 days, well how many hours is that?

If you need to you can just count it up. 1 day would be 10 hours, 2 days would be 20 hours and so on, that leaves us with 110 hours.

Now, if 75 are already passed, that leaves 110-75 = 35

Let me know if there was anything you didn't understand.