Answer:
7.25 hours (or 7 hr 15 minutes)
Explanation:
Lets use the distance equation to solve this problem. This is very easy...
Distance Equation
D = RT
Where
D is the distance (in miles)
R is the rate (in mi/hr)
T is the time (in hours)
Given in the problem:
Distance = D = 565.5 miles
Rate = R = 78 miles per hour
We want T, the time in hours it will take to drive. So we substitute the known parameters into the formula and solve for T:
![D=RT\\565.5=78T\\T=(565.5)/(78)\\T=7.25](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t5vbdey2714rh1j1ycs0gy287a3nsk6pkf.png)
So, it is going to take around 7.25 hours for them to arrive.
The extra 0.25 hours means:
0.25 Hours * 60 Minutes/Hour = 15 minutes
Or, we can say it will take 7 hours and 15 minutes for them to arrive.