Question

Robert was able to travel 292 miles in 4 hours and uses 38 l of gasoline. if gas costs $2.09 per gallon, how much did the trip cost robert? (1 gal≈3.785 l).

Answer 1

cost of 1 gallon gas = $2.09

cost of 3.785 litres gas = $2.09 ( 1 gallon = 3.785 litres)

cost of 1 litre gas = 2.09/3.785

cost of 18 litres gas = 2.09/3.785 * 18 = $20.982

Answer 2

Answer:

Robert´s trip cost $20.98.

Step-by-step explanation:

Robert use 38 liters of gas to make his 292 miles trip. The gallon of gas cost is $2.09. First we have to convert the 38 liters of gas to gallons.

$38 liters*\frac{1 gallon}{3.785 liters} =10.04 gallons$

Having convert the units, we can calculate how much cost the gas, this is:

$10.04gallons*2.09=20.98$

Robert´s trip cost $20.98.

The distance and time data is used to confuse.