Question

If gasoline costs 1.50 euros per liter it will cost how much to drive 220 kilometers

Answer 1

`11.79\ euros`

Explanation:

The complete question is

Suppose that a new​ fuel-efficient European car travels an average of 28 kilometers on 1 liter of gasoline. If gasoline costs 1.50 euros per​ liter, how much will it cost to drive 220 kilometers ?

step 1

using proportion

Find out the number of liters of gasoline needed for 220 kilometers

so

`(28)/(1)\ (Km)/(L)=(220)/(x)\ (Km)/(L)\\\\x=220/28\\\\x=7.86\ L`

step 2

Find the cost to drive 220 kilometers

Multiply the cost of one liter of gasoline by the total liters of gasoline needed to travel 220 Km

so

`1.50(7.86)=11.79\ euros`