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 enters the right atrium, and passes through the tricuspid valve to the right ventricle. The blood is then pumped through the pulmonary artery to the lungs t â¦ o become oxygenated. From the lung blood comes through pulmonary veins to the section of the heart called the left atrium.