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What is consumer surplus? Why is it important?

Consumer surplus is an important concept in economics. Essentially, it is the extra amount that a consumer is willing to pay for a given good or service. It is the difference between the current amount paid ...
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Answered by Hemal G. • Economics tutor
3272 Views

To make 12 cakes you need 100g of butter, 6 eggs, and 40g of sugar. How many cakes can you make with 450g of butter, 15 eggs, and 110g of sugar?

To work this out you can either work out the amount of an ingredient needed for one cake then divide the amount you have by this or you can work out how many times the amount needed for 12 cakes goes into th...
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Answered by Celeste S. • Maths tutor
4573 Views

Explain the Ainsworth experiment 'strange situation'

Strange situation was a experiment conducted to study attachment behaviours in infants. The experiment was conducted in a regulated environment and children were taken in with a parent. The parent played wit...
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Answered by Jemima F. • Psychology tutor
3903 Views

Describe and explain how a nerve impulse is transmitted across a cholinergic synapse.

An action potential from the presynaptic neurone arrives at the presynaptic knob. This process causes voltage-gated Calcium ion channels in the presynaptic membrane to open. Calcium ions then diffuse into th...
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Answered by Alex L. • Biology tutor
3724 Views

If a boy is stationary on a skateboard and jumps off forwards, why does the skateboard move backwards?

Momentum before the collision or separation must equal the momentum afterwards, this is called the conservation of momentum. The situation before had the skateboarder on the skateboard, both stationary. As m...
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Answered by Amy R. • Physics tutor
20222 Views