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Factorise 3x^2 + 15x

To factorise an equation you need to look for factors that all the elements of the equation (3x^2 and 15x) have in common. You can do this all at one or in steps, to start with you can see that both parts ha...
EF
Answered by Eve F. • Maths tutor
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Explain one negative externality that could occur due to the building of a new airport (2 marks)

This question tests the student's knowledge on the topic of negative externalities while also inviting them to think of its application in the real world. The buiding of a new airport is a common theme in Ec...
EA
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A "day return" train ticket is £6.45. A "monthly saver" is £98.50. Sue worked for 18 days last month. She bought a day return ticket each day she worked. A monthly saver ticket is cheaper than 18 day return tickets. How much cheaper?

This is a simple GCSE question which might feature at the beginning of the paper. It tests the student's attention to detail by asking to find the DIFFERENCE and not just the price that Sue paid. Also, given...
EA
Answered by Ecaterina A. • Maths tutor
6173 Views

Summarise the vessels of the heart and their function

(during this discussion I would use a diagram of the hear to point out appropriate parts) The Aorta is the body's largest artery, It carries oxygenated blood from the Left verntricle to the body. The superio...
GL
Answered by Gabriella L. • Biology tutor
4467 Views

Define the FITT principle

F- frequency I- Intensity T-time T-type
GL
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