SOLUTION: Kanye decide to drive to amberville for the weekend. During the first part of the trip he drove 210 miles at one speed. On the second part of the trip he drove 100 miles at 20 mph

Question 406799: Kanye decide to drive to amberville for the weekend. During the first part of the trip he drove 210 miles at one speed. On the second part of the trip he drove 100 miles at 20 mph less. ifc the total drive took 5 hrs, how fast did he drive during the first part of the trip? I just need help setting up the equation.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
t = d / r ___ the total time is 5 hr

[210 / r] + [100 / (r - 20)] = 5
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