4 › Madison plans to walk and run a total of 1 mi on a treadmill. She has already walked mi and 2 plans to run the rest of the distance. Madison wants to know the distance she needs to run.
Letr be the distance in miles that Madison needs to run. Describe the situation with an equation.
2/5 + r = 1 4/5
What is the distance that Madison needs to run?
The equation that represents the situation is:
distance walked + distance run = total distance
Given that Madison has already walked mi and plans to run the rest of the distance, we can substitute the values into the equation:
mi + r = 1 mi
To find the distance that Madison needs to run, we need to solve for r. From the equation, we can see that Madison needs to run a distance of r miles.
What’s the number of miles
The number of miles Madison needs to run, denoted as r in the equation, is equal to the distance she plans to run. To find this value, we can isolate r in the equation:
mi + r = 1 mi
Subtracting mi from both sides of the equation, we get:
r = 1 mi - mi
Simplifying, we have:
r = 0 mi
Therefore, the distance that Madison needs to run is 0 miles.