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Rearranging formulae

Rearrange 1/u + 1/v = 1/f to make u the subject of the formula. Give your answer in its simplest form. There are a number of ways to approach this problem. By subtracting 1/v on both sides we get 1/u as the ...
RS
Answered by Robert S. • Maths tutor
13910 Views

How can I get top marks on a long 8/9 mark question?

These questions are designed to test your ability to describe/explain/compare in detail. Good answers are able to describe or explain generic terms well, but excellent answers will do this with help of a exa...
BR
Answered by Bethany R. • Geography tutor
3324 Views

What is the difference between a composite (cone) volcano and a shield volcano?

Composite cone volcanoes are made out of alternate layers of magma and ash deposits whereas shiled volcanoes consist mainly of magma deposits only. composite cone volcanoes are also steeper sided whereas shi...
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Answered by Bethany R. • Geography tutor
6368 Views

How to write/speak formally?

Since Japanese are very strict when they are useing formal language toward either someone older than them, their boss, teacher etc therefore it is important to know how to write formally. Formal language in ...
DC
Answered by Deanne C. • Japanese tutor
2804 Views

You put £800 in a bank account, which earns you 3.5% compound interest per year. How much interest would you have earned after seven years?

We start with £800 in the bank. As we are earning compound interest, it means that each year we get 3.5% of the original £800, plus 3.5% of any interest that has already been earned. So, at the end of the ye...
PM
Answered by Philippa M. • Maths tutor
5686 Views