1 To find what your carâs fuel economy is (Metric System), multiply the amount of fuel used by 100 and divide that by the total kilometres driven. 2  Example: 42 litres x 100 / 400 = 10.5 litres / 100km.
There are four chambers of the heart: a right atrium, a right ventricle, a left atrium and a left ventricle. First, deoxygenated blood (blood without oxygen) is carried from the body through the Inferior and Superior Vena Cava. From these vessels, the blood is dumped into the Right Atrium of the heart.
Deoxygenated blood (from the body) enters the right atrium of the heart through the VENA CAVA; whereas, oxygenated blood (from the lungs) enters the left atrium of the heart t â¦ hrough the PULMONARY VEIN.6 people found this useful.eoxygenated blood (from the body) enters the right atrium of the heart through the VENA CAVA; whereas, oxygenated blood (from the lungs) enters the left atrium of the heart t â¦ hrough the PULMONARY VEIN. 6 people found this useful.