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GCSE

When solving two simultaneous equations, when should you use the method of elimination and when would you use the method of substitution?

I would first always label the two equations as equation 1 equation 2. I would then look to see if you can cancel one of the variables out by adding or subtracting the two equations together. If this is p...

RC
Answered by Reece C. Maths tutor
3481 Views

how to calculate reducing balance depreciation, provide an example.

In the reducing balance depreciation you have to deduct a same percentage from the carrying amount (historical cost of the asset - accumulated depreciation) of the asset each year. For example, cost of ma...

BB
Answered by Bushra B. Accounting tutor
2869 Views

Use completing the square to find the minimum of y = x^2 - 4x + 8

Remember completing the square gives a result of the form (x+q)2 + p where q and p are numbers
Also q is always half of the x term, which in this case is -4, as such q = -2
Substituti...

SD
Answered by Sol D. Maths tutor
3330 Views

What is an atom?

Atoms are the smallest particle of matter that cannot be divided and have a nucleus which contains protons and neutrons with electrons surrounding it in energy levels.

SB
Answered by Shazna B. Chemistry tutor
2849 Views

What are the 4 chambers of the heart?

The 4 chambers of the heart are: Right atrium,Right ventricle,Left atrium and left ventricle.

SB
4790 Views

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