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Bag A contains £7.20 in 20p coins. Bag B contains only 5p coins. The number of coins in bag B is three-quarters of the number of coins in bag A. How much money is in bag B?

First you want to find out how many coins there are in bag A. So how many 20p coins do you need to make £7.20? This is the same as 720p. 720 divided by 20 is the same as 72 divided by 2 which is 36. So there...
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Answered by Anezka E. • Maths tutor
13096 Views

Why does the temperature decrease in the endothermic reaction?

The temperature of the surrounding is decreased because energy is taken into the reaction. An example of this is two solutions A and B being mixed and the resultant product mixture having lower temperature.
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Answered by Harry L. • Chemistry tutor
11328 Views

I don't understand the difference between aerobic and anaerobic respiration

Aerobic respiration is respiration that uses oxygen and glucose, whilst anaerobic respiration is respiration that only uses glucose. As you can see in the equations for both types of respiration: Aerobic res...
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Answered by Arabella K. • Biology tutor
7660 Views

How should I go about factorising x^2+5x+6?

I always think of the middle number as the sum and the last number as the product (in this example, we have the sum as 5 and the product as 6!) This just means that we have to look for two numbers which add ...
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Answered by Laura W. • Maths tutor
4837 Views

How can I avoid "waffling" when analysing a text?

The approach that I would suggest to any student analysing a text is to use "PEE". This stands for Point, Evidence and Explain and allows your answers to be more focused and ensures that you includ...
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3754 Views