Starr drives 495 miles in 9 hours. How many miles does Starr drive in 15 hours?
Starr drives 495 miles in 9 hrs.
That's 495 miles/9 hrs
Do you remember the problem about cups and teaspoons? Mothers and pancakes?
We just divide top and bottom by the number on the bottom, so that we end uo with just one "thing" on the bottom
The number on the bottom is 9 (from 9 hrs)
If we now divide top and bottom by 9, we get
55 miles / 1 hr
i.e. Starr's speed is: 55 miles/hr
If Starr now drives for 15 hrs, she will travel 55 * 15 miles = 550 + 275 = 825 miles
Answer: Option A : 825 miles
