Respuesta :

Answer:

The answer would be for 6.4 hours

Step-by-step explanation:

I started off this problem by writing down my key numbers for my equation. There is the total mileage, 345.6 miles, and the speed, which is 54 miles per hour. The formula I used was d/t=r (d = distance, t = time, r = rate (otherwise known as speed). I then plugged in the details I have into the equation and solved for the variable. (345.6 miles/t = 54 mph). For this problem, we are solving for the t. I then divided t from the left side, and multiplied it to the speed to get 345.6 = 54t. I then divided 345.6 by 54 to isolate the t variable and get our final answer, which is 6.4 hours.