Answer: 6 kilometers
Explanation:
You have $20 to spend on taxi fee. The ride costs $5 plus $ 2.50 per kilometer. Write an inequality to determine the distance in kilometers, that, you can ride for $20. What is the maximum distance, in kilometers, you can ride for $20.
Hi, to answer this question we have to write an equation with the information given:
- Ride cost = $5 plus $2.50 per km
- Budget = $20
So, we have to add $5 and the product of 2.50 and the number of kilometers (x) to obtain the total cost.
That expression must be less or equal to the budget (20).
Mathematically speaking
5+2.5x ≤20
Solving:
2.5x ≤20-5
2.5 x ≤15
x ≤ 15/2.5
x ≤ 6 kilometers
Feel free to ask for more if needed or if you did not understand something.