Question

You have $20dollar to spend on taxi fare. The ride costs $5dollar plus$2.50 dollar per kilometer. Write an inequality to determine the distance in kilometers, d, you can ride for $20.

Answer 1

Answer: ($2.50k) + $5

The distance you can ride is 6 kilometers.

($2.50 x 6) + $5 = $20

Answer 2

`2.50d+5\leq 20`

Explanation:

Let d represent distance in kilometers.

We have been given that a taxi ride costs $2.50 per kilometer, so the cost of d kilometers would be
`2.50d` dollars.

We are also told that ride costs a fixed charge of $5, so total cost of d kilometers would be
`2.50d+5` dollars.

You have $20 to spend on taxi fare, so the total cost of riding d kilometers should be less than or equal to 20.

We can represent this information in an inequality as:

`2.50d+5\leq 20`

Therefore, our required inequality would be
`2.50d+5\leq 20`.