Question

the cost of a taxi ride is given c = rd + a, where r is the rate per one-fifth mile, d is the trip distance in terms of a number of one-fifth mile units in the trip, and a is the flat fee for just starting the meter. solve the equation for r

Answer 1

This question wants you to isolate the r.

C = rd + a

c-a = rd

(c-a)/ d = r

The solved equation for r is (C - A) / D = R