Carcass wrote:
A certain taxi company charges $3.10 for the first 1/5 of a mile plus $0.40 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?
A. 15.60
B. 16.00
C. 17.50
D. 18.70
E. 19.10
In other words, the taxi company charges $3.10 for the first 0.2 miles PLUS $0.40 for each additional 0.2 miles.
Let's think of the 8-mile taxi ride in two parts:
Part I) The first 0.2 miles
Part II) The remaining 7.8 miles
Part I: The first 0.2 miles costs
$3.10Part II: 7.8 ÷ 0.2 =
39 0.2-mile increments.
So, the total cost of those 39 increments = (39)($0.40) =
$15.60So, the total cost of the entire trip =
$3.10 +
$15.60 =
$18.70Answer: D