Question

Which equation represents the amount 'a' left after 't' trips on a pre-paid $25 subway card if the price per trip is $1.75?

a. t = 1.75a - 25
b. a = 1.75t + 25
c. a = -1.75t + 25
d. t = -1.75a + 25

Answer 1

The equation that represents the amount 'a' left after 't' trips on a prepaid $25 subway card if the price per trip is $1.75 is a = -1.75t + 25.

Step-by-step explanation:

The equation that represents the amount 'a' left after 't' trips on a prepaid $25 subway card if the price per trip is $1.75 is a = -1.75t + 25.

To understand this, we can analyze the equation. The coefficient of 't' is -1.75, which represents the cost of each trip deducted from the initial amount. The constant term 25 represents the initial amount on the subway card. So, as the number of trips increases, the amount left on the card decreases at a rate of $1.75 per trip.