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Help! How do I rearrange equations?

Being able to manipulate equations is a very useful skill in Physics. Consider, for example, the relationship between mass, density and volume. m = ρ x v In the above equation, the mass, m is the subject bec...
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Answered by Ijeoma P. • Physics tutor
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State one difference between an animal cell and plant cell

Animal cell doesn’t have a cell wall but a plant cell does
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Answered by Morgan C. • Biology tutor
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Explain SMART targets

SMART is an acronym for: Specific- your target should be specific to your sport and easy to understand Measurable- your target should be able to be measured easily with a value Acheivable- your target should...
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How do you factorise a quadratic equation into the form (x+A)(x+B), for example x²+x-6 =0?

Quadratic equations are always given in the form a x 2 + b x + c . One way of solving (finding values of x) and therefore factorising is to use the quadratic formula which is :x = −b ± √(b 2 − 4ac)/ 2a ,usin...
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Answered by India J. • Maths tutor
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3 teas and 2 coffees have a total cost of £7.80 5 teas and 4 coffees have a total cost of £14.20 Work out the cost of one tea and the cost of one coffee.

You make simultaneous equations. 1.) 3T+2C=7.82.) 5T+4C=14.2Then you make either the C or the T coefficient equal in both equations. I choose to make the C coefficients the same. So I multiplied equation 1 b...
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Answered by Dan S. • Maths tutor
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