Ms. handler walks to work at an average speed of 5 km per hour. if she increases her speed to 6 kilometers per hour she will save 10 minutes.
find the distance she walks

The distance she walks is 5 km

Step-by-step explanation:

Let

x -----> the distance in kilometers

y ----> the time in hours

we know that the speed is equal to divide the distance by the time

Average speed of 5 km/h

-----> equation A

Average speed of 6 km/h

convert 10 minutes to hours

----> equation B

Solve the system by graphing

The solution is the intersection point both graphs

The solution is the point (5,1)

see the attached figure

therefore

The distance she walks is 5 km

Verify

Average speed of 5 km/h

Average speed of 6 km/h

The difference is the time she will save

----> is correct

$32,660

step-by-step explanation:

the answer is d. 75%