Question

A bus pass has a starting value of $100. After one ride, the value of the pass is $98.25. After two rides, its value is $96.50. After three rides, its value is $94.75

1. Write a rule to represent the remaining value on the card as an
arithmetic sequence.

Arithmetic Rule: ????

2. What is the value of the pass after 15 rides?

# of Rides Bus Pass Value Rule
0 $100.00
——————————————————
1 $98.25
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2 $96.50
——————————————————
3 $96.75
——————————————————
15 ????

Answer 1

The answer to the first question (I think) is 100 - (1.75x) if x is the number of rides

The answer to the 2nd question is $73.75 because every ride costs $1.75 and 1.75 times 15 equals 26.25 and 100 - 26.25 = 73.75