SOLUTION: I need help solving this problem, "After driving at a certain speed for 5 hours Dave realizes that he could have covered the same distance in 3 hours if he had driven 22 mph faster
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Question 1131885: I need help solving this problem, "After driving at a certain speed for 5 hours Dave realizes that he could have covered the same distance in 3 hours if he had driven 22 mph faster. What distance did he travel during the 5 hour trip?" Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! rate * time = distance
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let r be Dave's initial rate and d be the distance of Dave's trip
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r * 5 = d
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(r+22) * 3 = d
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5r = 3 * (r+22)
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5r = 3r +66
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2r = 66
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r = 33
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33 * 5 = 165
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he traveled 165 miles in 5 hours
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