Question

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

Answer 1

x = 6 km

Explanation:

Let x be distance in km

The inequaqlity is

5 + 2.5*x ≤ 20 (1)

And the maximum distance will be when the inequality (1) get the upper limit that means when (1) becomes an equality

5 + 2.5x = 20

2.5 x = 15

x = 15/2.5

x = 6 km