When a circle's diameter is 1, its circumference is π.
-4/7 > -2
If it is greater it goes to the right, and if it is less it goes to the left.
-4/6 is located to the right of -2
This picture will explain the mistake. She didn’t carry down the -2/4 and add to make sure her answer was fully correct.
This is the concept of density, volume and mass of different materials; To calculate for the volume of an aluminium material with density of 2.375 grams per cubic centimeter and a mass of 0.78 Kilogram we proceed as follows;
Density=mass/volumemaking volume the subject we get;volume=mass/densitythus;mass=0.78 kg= 780 gdensity=2.375 g/cm^3Hence,volume=780/2.375=328.421 cm^3
