If a taxi meter registers 20 dollars plus 5 dollars per kilometer covered. Express the amount T registered in the taxi's meter as a function of the number of kilometers covered.
Answers
Given : a taxi meter registers 20 dollars plus 5 dollars per kilometer covered.
To Find : Express the amount T registered in the taxi's meter as a function of the number of kilometers covered.
Solution:
Let say x represent the kilometer covered
cost per kilometer = 5 $
Hence cost for x kilometers = 5x $
Fixed cost = 20 $
Total Cost = Fixed cost + cost for x kilometer
Total Cost = T
=> T = 20 + 5x
=> T = 5(x + 4)
or T = 5x + 20
amount T registered in the taxi's meter as a function of the number of kilometers covered. T = 5x + 20
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