SOLUTION: Find an equation of the line containing the given pair of points Emma left home early and traveled East. By 11 am she was 100 miles from home, and by 7 pm she was 420 miles from

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Find an equation of the line containing the given pair of points Emma left home early and traveled East. By 11 am she was 100 miles from home, and by 7 pm she was 420 miles from      Log On


   

Question 1182971: Find an equation of the line containing the given pair of points
Emma left home early and traveled East. By 11 am she was 100 miles from home, and by 7 pm she was 420 miles from home. What was her average speed in miles per hour?
Answer by ikleyn(52876) About Me  (Show Source):
You can put this solution on YOUR website!
,.

To find the average speed, divide the traveled distance, 420-100 = 320 miles,

by the time spent, which is 7 + 1 = 8 hours, from 11 am to 7 pm.


You will get the answer of  320%2F8 = 40 miles per hour.    ANSWER

Solved.