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What should I say when asked to talk about the dynamics of a piece?

Begin by making a judgement on whether the music sounds piano (quiet) or forte (loud). This gives you a solid baseline on which the answer can be built from. It's okay to fine tune the answer later if you wi...
Answered by • Music tutor
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How should I calculate the values of a and b when a(4x+12) is equivalent to 2x+36b?

Firstly, start off by expanding the brackets on the left hand side of the equation a(4x+12) would expand as below: 4x multiplied by a gives 4ax12 multiplied by a gives 12a We now know that 4ax is the equival...
Answered by • Maths tutor
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Solve these simultaneous equations: 7x+3y=84, 2x+2y=32

Make x the subject of either equation:x = (32-2y)/2;x = 16-yRepresent an equation as a function of y only: 7(16-y)+3y = 84;112-7y+3y = 84;112-4y = 84;-4y = -28; y = 7Use the value of y to determine value of ...
TP
Answered by Thomas P. • Maths tutor
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Fully factorise the expression 14x^2y - 28xy^2

First take out a factor of x to give x(14xy - 28y 2 )Next take out a factor of y to give xy(14x - 28y)Finally take out a factor of 7 to give 7xy(2x - 4y)
SO
Answered by Scarlett O. • Maths tutor
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Solve the simultaneous equations: 5x+y=21, x-3y=9

Step 1. Take one equation and make either x or y the subject of the formulax=9+3y, 5x+y=21Step 2. Substitute in the equation5(9+3y)+y=21Step 3. Make y the subject of the formula45+15y+y=21 (multiplied out th...
MJ
Answered by marcus J. • Maths tutor
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