If Jack walked 5 miles in 1 hour and 15 minutes, what was his rate of walking in miles per hour? (A) 4 (B) 4.5 (C) 6 (D) 6.25 (E) 15
If Jack walked 5 miles in 1 hour and 15 minutes, what was his rate of walking in miles per hour? (A) 4 (B) 4.5 (C) 6 (D) 6.25 (E) 15