Question

Daisy has a bus pass with a balance of $30 on it. She uses the bus pass to pay for bus fares. The price for each bus fare is $1.50. Which equation represents the bus pass balance (y), in dollars, based on the number of bus fares, x, she pays for?

A) y = 30 - 1.50x
B) y = 1.50x - 30
C) y = 30 + 1.50x
D) y = 30x - 1.50

Answer 1

The equation that represents the bus pass balance (y) based on the number of bus fares (x) Daisy pays for is y = 30 - 1.50x. This equation represents the initial balance of $30 and subtracts $1.50 for each bus fare Daisy pays for.

Step-by-step explanation:

The equation that represents the bus pass balance (y) based on the number of bus fares (x) Daisy pays for is:

y = 30 - 1.50x

This equation represents the initial balance of $30 (30) and subtracts $1.50 for each bus fare (1.50x) Daisy pays for. The value of y will decrease as Daisy pays for more bus fares, and when y reaches 0, it means that Daisy has used up all the balance on her bus pass.