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The Circle of Fifths is a harmonic system which uses the interval of a 5th, i.e. C to G to help us identify keys and other important musical factors. The Circle of Fifths can be laid out in many ways but ...

1. In order to solve simultaneous equations, you need to make either terms of x (i.e. '2x') or terms of y (i.e. 'y') in equation (1) and equation (2) equal. To do this, multiply either (1) or (2) as sh...

1. Factorise

(x-3)(x-2) =0

Therefore  x-3=0, x=3. Also x-2=0, x=2.

Find 3.6262 (recurring) as a fraction s=3.626262 (recurring) 100s= 362.626262 99s= 100s - s 99s=359 s=359/99

= (30/15+11/15) - (3/3+1/3) = (41/15)-(4/3) = (41/15)-(20/15) = (21/15) = (7/5)