Answer:
12
Step-by-step explanation:
Given : A cab company calculates cab fares using the expression 1.50d + 3, where d is the distance traveled in miles.
To Find: If a passenger has to pay a $21 fare for a ride, which number from the set {9, 12, 15, 18} is the value of d?
Solution:
Cab fare Expression : @@MATH_TOKEN_0@@
Where d is the distance traveled in miles.
Now we are given that a passenger has to pay a $21 fare for a ride
So, \(21=1.50d + 3\)
\(21-3=1.50d\)
\(18=1.50d\)
\(\frac{18}{1.50}=d\)
\(12=d\)
Thus the value of d is 12 .
