Math Problem...?
If the taxi fare is "c" cents for the first quarter-mile and "s" cents for each additional quarter-mile, what is the charge, in cents, for a trip of "x" miles, where "x" is greater than 1?
Choices:
A-c+s(4x-1)
B-c+s(x-1)
C-c+sx
D-sx
E-(c-1)s+x
Full Explanation would be great.
Comments
A trip of x miles is a trip of 4x quarter-miles, right?
The first quarter-mile costs c cents, and the other (4x-1) cost s cents each.
So the total cost is c + s(4x-1)
Answer is A.