Question

A boat is cruising at a speed of 8.3 kilometers per hour. How long will it take to travel a distance of 8.715 kilometers?

Answer 1

Speed is distance divided by time.

speed = distance/time

Now we solve the above equation for time.

speed * time = distance

time = distance/speed

time = (8.715 km)/(8.3 km/h) = 1.05 h

Answer: It takes 1.05 hours, or 1 hour and 3 minutes

Answer 2

Let's look at an equation. X will be hours while Y will be distance.
8.3x=y
We're doing speed×time=distance

For this case, we need to solve for x. So, our equation will look like:
8.3x=8.715
So get x alone, we need to divide both sides by 8.3. So the equation to find how long it took is:
8.715÷8.3=x
We are doing distance÷speed=time. Let's solve.
8.715÷8.3=1.05

So, it took 1.05 hours.