Arunner is participating in a 10.3 mile race. if the runner stopped at a water station that is twice as far from the starting line as from the finish line, how far is the runner from the finish line?

We have the representation of this problem in the figure below. As we have a 10.3 mile race, then the equation is fulfilled as:



We know that there is a water station that is twice as far from the starting line as from the finish line, then:



So:


∴

and

Finally, the distance of the runner from the finish line is:

2.4+3.2t. you get the answer by adding the ones with variables and ones without