Respuesta :
If a car is travelling 70 m.p.h that means it is travelling 70 miles PER HOUR and since we want to know half an hour we can do
70mph divided by 2 =35m.p half hour so the car is travelling 35miles in half an hour
If the car travels at 70 mph then in 1/2 an hour it will travel 70*1/2=35 miles