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Solve the simultaneous equations: x + 2y = 13, 4x - 3y = 8.

Multiply both sides of the equation x + 2y = 13 by 4 to get 4x + 8y = 52. Subtract 4x - 3y = 8 from 4x + 8y = 52 to get 11y = 44. Divide both sides of 11y = 44 by 11 to get y = 4. Since we now know y = 4, we...
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Answered by Kate P. • Maths tutor
6153 Views

How would you solve (4y + 3)/5 + (3y+1)/2 = 4 for y?

The first step is to remove the fractions in the equation, as the equation is easier to solve when there are only whole numbers.To remove the first fraction we should times the entire equation by 5 ----> ...
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Answered by Nima S. • Maths tutor
3378 Views

What is the difference between '<' and '≤'?

'x &lt; 4' simply means that x is less than 4.2) However, x ≤ 4 means that it is less than or equal to 4. So if you have x = 3, 2, 1, 0 then the first term, 'x &lt; 4' appliesbut if x = 4, 3, 2, 1, 0 then th...
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Answered by Tom H. • Maths tutor
5935 Views

As a director influenced by Brecht, what styles and conventions would you implement in your piece of theatre?

With Brecht being an abstract and absurd practitioner, I would keep in mind that his main philosophy was to use theatre not to entertain but to educate, and to always remind the audience that they are watchi...
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Answered by Jannat S. • Drama tutor
2527 Views

A kettle requires 2400 Coulombs of charge to pass through its heating element, with a resistance of 6 Ohms, in a time of 200 seconds in order to boil the water inside it. Calculate the current flowing and the power of the kettle.

I=Q/t=2400/200=12AP=I V=I^2 R=12^2*6=864W Of course, when discussing the answer with a student I would verbally explain each step in detail and add more drawings to my workings. Unfortunately, I cannot do th...
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Answered by Sam L. • Physics tutor
7298 Views