Search our library of homework questions

Top answers

All subjects

All levels

How do I ensure that I answer the question but also reveal how much knowledge I have acquired through revision and practice?

When you have invested a lot of time and energy into your revision, it is understandable that you want to convey this to your examiner. The way to do this is not, however, by setting down as much informat...

Answered by Francis B. • English tutor

2071 Views

Frank, Mary and Seth shared some sweets in the ratio 4:5:7. Seth got 18 more sweets than Frank. Work out the total number of sweets they shared.

The ratio 4:5:7 is a way of comparing the size of the shares received by Frank, Mary and Seth. It helps to pretend that we are sharing the sweets between some equally-sized boxes: each box has the same nu...

Answered by Richard N. • Maths tutor

29697 Views

Solve the simultaneous equations “x^2+y^2=4” and “x=2-y”. What does this tell us about the circle centred on the origin, with radius 2, and the straight line with y-intercept 2 and gradient -1?

In order to solve the pair of simultaneous equations, we must find a single set of values for x and y which fulfils both at once. By substituting “x=2-y” into “x²+y²=4”, we obtain a ...

Answered by Aaron D. • Maths tutor

11974 Views

What is the difference between a longitudinal and a transverse wave?

First it's important to remember that a wave isn't an object that is moving. When a wave moves through a substance the particles of the substance move side to side or backwards and forwards around their o...

Answered by Maya B. • Physics tutor

7418 Views