SOLUTION: After leaving Dallas, Parker drove 300 miles at x mph and then decreased his speed by 10 mph and drove an additional 400 miles. Make a table with the given information and write an
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-> SOLUTION: After leaving Dallas, Parker drove 300 miles at x mph and then decreased his speed by 10 mph and drove an additional 400 miles. Make a table with the given information and write an
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Question 18998: After leaving Dallas, Parker drove 300 miles at x mph and then decreased his speed by 10 mph and drove an additional 400 miles. Make a table with the given information and write an expression for his total traveling time. Evaluate the expression for x = 60. Answer by xcentaur(357) (Show Source):
total travelling time=(300/x)+(400/(x-10))
for x=60,total travelling time is:
=(300/x)+(400/(x-10))
=(300/60)+(400/(60-10))
=(300/60)+(400/50)
=5+8
=13 hours
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