Jane spent 3 hours exploring a mountain with a dirt bike. First, she rode 39 miles uphill. After she reached the peak she rode for 10 miles along the summit. While going uphill, she went 10 mph slower than when she was on the summit. What was her rate along the summit?

Alocal hamburger shop sold a combined total of 601 hamburgers and cheeseburgers on friday. there were 51 more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday? a local hamburger shop sold a combined total of hamburgers and cheeseburgers on friday. there were more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday?