A cab company calculates cab fares using the expression 1.50d + 3, where d is the distance traveled in miles. If a passenger has

Question

3 years ago

3

to pay a $21 fare for a ride, which number from the set {9, 12, 15, 18} is the value of d?
9

2 answers:

alexira [117] · Answer 1 · 2022-04-13T04:36:20+03:00

8 0

1.50d + 3 = 21
1.50d = 18
d = 18/1.50
d = 12

charle [14.2K] · Answer 2 · 2022-04-13T02:22:59+03:00

3 0

Set 1.50d + 3 equal to $21

1.50d + 3 = 21
<em>Now solve for d</em>
1.50d + 3 - 3 = 21 - 3
1.50d = 18
d = 12