77.64 Km/h
Your average speed must be exactly 235 km per 3.25 hours.In more familiar units:235/3.25 = 72.3077 km per hour (rounded)
7 x 65, must be around 450 miles...
35 mph
At 80 km/hr - which I am assuming is what you meant by 80 km, a car will travel 120 km. To make that journey in 2 hours, it must travel at 120 km/2 hr or 60 km/hr.
665-(55x5)=665-275=390390 miles/6 hours=65 mph
19.3548 mph
330 kilometers / 4.25 hours = 77.65 kilometers per hour
Your average speed must be exactly 235 km per 3.25 hours.In more familiar units:235/3.25 = 72.3077 km per hour (rounded)
Velocity
Calculate the average speed of a plane that flies 1200 miles in 3 hours
500/8=62.5mph
Answer is 65
7 x 65, must be around 450 miles...
37.5 mph
to measure the average speed of a car for instince you must use the following formula SPEED= distance divided by time
35 mph
20 miles at 16mph would take 1.25 hours. To complete the race in 2.5 hours, the final 30 miles must be completed in 1.25 hours ie 30/1.25 = 24mph