1. You have that the speed is:
Where 
is the distance and 
is the time.
2. Tory pilots her boat 
before docking, therefore, his time is
3. Emilio continues for another 
, with a total of 
before docking. Therefore, his time is:
4. And his speed is:
5. Solve for 
and substitute the value into the formula of Tory's time:
The answer is: 
Convert to Y=MX+B to make it easier, minus 2x from both sides to get -7y=-2x+14, then divide it all by -7 to get y=2/7x-2. 2 equals your starting point, from there go down 2 and over 7 for you slope and repeat until the graph is done.
For the second example, x should be 25, not 80.
Answer:
x≤-4 or x≥0.5
Step-by-step explanation:
Hello!
In order to solve this equation,we must first find out what distance is being traveled in 4 hours. If we travel 4 hours, at a constant speed of 60 miles,we must multiple those two numbers to find the distance travelled.
60x4 is 240.
This means we must divide 240 by 3 hours to find our constant rate of speed.
240 divided by 3 is 80.
This means, we would need to travel 80 mph to arrive to the same location in three hours.
x=80.
Hope this helps & good luck.
