SOLUTION: write and solve an equality on a trip from the death valley national park to rocky mountain national park the sampson family wants to travel at least 420 miles in 8 hours of drivin

Algebra ->  Inequalities -> SOLUTION: write and solve an equality on a trip from the death valley national park to rocky mountain national park the sampson family wants to travel at least 420 miles in 8 hours of drivin      Log On


   

Question 1146997: write and solve an equality on a trip from the death valley national park to rocky mountain national park the sampson family wants to travel at least 420 miles in 8 hours of driving. what must be the average rate of speed?



Answer by ikleyn(52795) About Me  (Show Source):
You can put this solution on YOUR website!
.

The requested inequality is THIS :


    8x >= 420  miles,


where 8 = 8 hours and x is the average speed in miles per hour.


The solution to this inequality is


    x >= 420%2F8 = 52.5,


meaning that the average speed must be at least 52.5 miles per hour.