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The heart is divided into four chambers: the right atrium, right ventricle, left atrium and left ventricle [insert diagram]. The right side of the heart pumps blood to the lungs. The left side of the hear...

In a monopolistic market there is a large number of small, profit-maximising firms, selling differentiated, heterogeneous products. This means that they have some degree of control of price in the short r...

Jackson's knowledge argument aims to refute Physicalism (the philosophical position that everything which exists is no more extensive than its physical properties, and that the only existing substance is ...

3x+7y=18 (eqn 1)  -multiply by 7->   21x+49y=126 (eqn 1*)

7x+9y=8  (eqn 2)  -multiply by 3->    21x+27y=24 (eqn 2*)

(eqn 1*)-(eqn 2*)  --> 22y=102 therefor y=51/11

sub in thi...

This question can be answered by the elimination method. I will choose to eliminate 'y' in this case. Firstly, multiply equation (1) by 2, resulting in 8x+2y=14. Now we can subtract eqaution (2): 3x+2y=9 ...