Respuesta :
Answer: He can walk 35 miles in 7 hours because 15x2=30 and 15/3 is 5.
Answer:
35
Step-by-step explanation:
15 miles in 3 hours is equal 15:3, which you can simplify to 5:1, or 5 miles per hour.
Multiply it by 7, and you get 35:7, or 35 miles in 7 hours.
Hope this helped!