I am a high school student (12)
On one October morning, Julia rides her bike (at 12 miles per hour) from her home to her friend Ida's house; then the two of them walk (at 6 miles per hour) to work. If it takes an hour for Julia to go the 10 miles from her home to work, how far does she walk?
Thank you.Hi Karyna,
I would start by drawing a diagram.
On the diagram I have marked the section that Julia travels at 12 mph and the section where she travels at 6 mph. The distance that she walks is the quantity desired so I called this distance x miles. Since the distance from home to work is 10 miles, the distance that she rode her bicycle is 10 - x miles.
In the second part of her trip she walks x miles at 6 mph. How long does she walk?