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Solve 8(x + 3) = 36

In this question (taken from a non-calculator higher level GCSE maths past paper), we want to find an answer x=? Ultimately we want to leave x 'by itself' on the left hand side, with our answer on the right....
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Answered by Kathryn P. • Maths tutor
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Insulating a home costs £2000 and saves £50 a year. What is the payback time?

40 years.
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Answered by Leo T. • Physics tutor
4397 Views

Differentiate y= (2x+1)^3. [The chain rule]

For maths questions I feel that getting your head around the concepts are difficult but once achieved allow you to comfortably answer a wide range of questions. Therefore for maths tuition I think it is impo...
JJ
Answered by James J. • Maths tutor
19728 Views

Explain why an enzyme like maltase is specific to the breakdown of maltose.

With A-level biology it is just as important to know how to answer the question and what the examiners are looking for as it is to have the knowledge to do so. There are common questions that examiners ask e...
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Answered by James J. • Biology tutor
7839 Views

Describe the formation of a gorge.

A gorge is formed as a result of a change in rock type at a waterfall. At the base of a waterwall the pressure and hydraulic action of the falling water causes the softer rock which is underneath to erode fo...
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Answered by Ellie W. • Geography tutor
62229 Views