Nancy is running on a trail that is a 5.3 miles long. After 20 minutes she has ran 1.45 miles. Write an addition equation to find how much farther Nancy has to run to complete the trail.
The first thing we are going to do for this case is to define a variable. We have then: x: number of minutes y: number of miles traveled. The equation that models this problem is given by: [tex]y = - (1.45 / 20) x + 5.3
[/tex] (-1.45 / 20): is the speed with which Nancy runs 5.3: is the length of the path. Answer: an addition equation to find how much farther Nancy has to run to complete the trail is: [tex]y = -(1.45/20)x + 5.3[/tex]
