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Solve algebraically for a and b: 6a+b=16, 5a-2b=19

Multiply equation 1) by 2 : 12a+2b=32. There are alternate signs of b and so therefore add the equations together: 17a=51. Solve for a: a=3. Sub a into one of the equations to find b: 5*3-2b=19b=-2. The f...

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Answered by Sorcha S. Maths tutor
2435 Views

What are the principles that define the Biological level of analysis ?

There are 3 principles that define the Biological level of analysis , and each come with a research study conducted by researchers :Principle 1 : Biological correlates of behaviour -

Answered by Psychology tutor
1677 Views

How do I ensure a good mark in a Philosophy Paper 1 exam?

The key to obtaining all the marks in an IB philosphy exam is to know the structure of an essay and to have a clear approach to answer all (or almost all) the topics that are covered in the IB philosphy s...

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Answered by Anna B. Philosophy tutor
8813 Views

“Provision for depreciation is made to provide funds for replacement of a fixed assest” discuss this statement (6 marks)

Depreciation is not a movement of cash so therefore does not provide funds for a replacement of a fixed assest. Depreciation is a book keeping entry, debiting the income statement (P+L) and crediting prov...

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Answered by Shane C. Accounting tutor
1673 Views

How do you answer the 4 markers in the Geography exam?

These are marked through response marking and how the student formats their answer. You need to state two points and elaborate upon them to achieve full marks. For example: explain how global warming can ...

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Answered by Millie N. Geography tutor
24127 Views

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