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This is a geometry question. 

We know that a square has 4 equal sides of x, and that it's area is given by A=x². 

So we can work out the length of the side of the...

Method 1 (algebraically):

Since we have "y=" at the start of both equations, we can substitue one into the other to get

3x-10=2x+5

T...

Nephrons are units of the kidney which are specially adapted for filtration and reabsorption of substances in the blood. Each nephron is composed of different various parts which have specific roles. T...

Character analysis is an essential skill used in all English Literature GCSE exams. The ways that a character is presented in a text, their importance to the overall mea...

Antiobiotics kill bacteria but bacteria can become resistant to antibiotics. This happens through a process called natural selection. Within a group/population of bacteria they will all have small diff...