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

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(52797) (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 >=  = 52.5,


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

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