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The normal price of a television is £1200. It is reduced to £970. Work out the percentage reduction. Give your answer to 1 decimal place.

First we calculate the difference between the original price and the new price. This is £1200 - £970 = £230. We now divide this difference by the original price, and multiply it by 100 to find the percentage...
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Answered by Harry H. • Maths tutor
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How can you find the integral of x^-1

The traditional rule for integration of a variable raised to a power is to raise the power by 1 and divide the answer by that new exponent. However, this rule leads to an answer of x^0 = 1, which can't be ri...
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Answered by Angus L. • Maths tutor
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How fast are geostationary satellites moving?

From a Newtonian perspective, the equation for the speed of a satellite in circular orbit around the Earth at a radius r can be derived by equating centripetal acceleration to the acceleration due to gravity...
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Answered by Angus L. • Physics tutor
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Why does water expand when it gets cold while metals contract?

The temperature of a substance is a measure of the average kinetic energy (energy of movement) of the molecules within it. When molecules have less kinetic energy, they are moving slower on average and thus ...
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Answered by Angus L. • Science tutor
33481 Views

How does the Spanish GCSE work?

Spanish GCSE is set up with 4 sections. The listening exam, Reading exam, Oral exam and finally the Written exam.
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