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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 information...
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Answered by Francis B. • English tutor
2437 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 numbe...
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Answered by Richard N. • Maths tutor
30856 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 “x 2 +y 2 =4”, we obtain a single equation conta...
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Answered by Aaron D. • Maths tutor
12760 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 orig...
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Answered by Maya B. • Physics tutor
8277 Views

What is the length of the hypotenuse in the right angled triangle to one decimal place? (a=5cm, b=4cm)

Step 1. Use the formula a 2 +b 2 =c 2 Step 2. Square a and b to find a 2= 25 and b 2 =16 Step 3. Add a 2 and b 2 to find c 2 =41 Step 4. Find the square root of c 2 is sqrt(41)=6.403 Step 5. Round 6.403 to 6...
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Answered by Eleanor R. • Maths tutor
4442 Views