SOLUTION: A taxi charges an initial charge of $3. Your fare will be computed as the $3 charge plus 20 cents for every mile traveled. a) Write the cost (C) of a taxi ride in terms of the nu

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Question 3518: A taxi charges an initial charge of $3. Your fare will be computed as the $3 charge plus 20 cents for every mile traveled.
a) Write the cost (C) of a taxi ride in terms of the number of miles ridden (X).
b) If the fare is $4.70, how far did you ride?
Answer by ntnk(50) About Me  (Show Source):
You can put this solution on YOUR website!
C+=+3%2B.20x

4.70 = 3+.20x


Subtract 3 from each side to isolate the variable.
4.70-3 = 3+.20x-3
1.70 = .20x


Divide .20 from each side:
1.70/.20 = .20x/.20
8.5 = x


Check:
4.70 = 3+(.20)(8.5)
4.70 = 3+1.7
4.70 = 4.70

Solved By: NtNk