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Explain how the UK tax and benefit system is used to redistribute incomes

Income taxes in the UK are progressive in nature, where an increasing percentage of income is paid to the government depending on the individuals earning level. Because higher earners pay more than lower ear...
OR
Answered by Olivier R. • Economics tutor
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Describe the theory of enzyme action.

Enzymes are biological catalysts that speed up the rate of biological reactions. The enzyme active site and the substrate are complimentary in shape. This allows the substrate to bind to the active site of t...
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Answered by Catherine D. • Biology tutor
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Explain why there is a general increase in the first ionisation energy across the third period.

The first ionisation energy depends on:the charge on the nucleus, the distance of the outer electron from the nucleus, the amount of shielding by inner electrons and whether the electron is alone in an orbit...
MP
Answered by Mara P. • Chemistry tutor
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Solve 7(x-5)=25-3x

Firstly, expand the left hand side of the equation out to produce: [7x-35=25-3x]. Bring all the x's to one side (to form 10x=60). Divide both sides by 10 to find the solution for x [x=60/10]. Therefore, x=6
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Answered by Jenni J. • Maths tutor
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The equation 5x sqaured + px + q , where p and q are constants, has roots α and α + 4. (a) Show that p squared = 20q +400.

a+a+4 = -p/5a+2 = -p/10(a+2)sqaured = q/5 +4p sqaured/100 = q/5 +4p sqaured = 100(q/5 +4)implies p squared = 20q+400
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Answered by Ahmed T. • Maths tutor
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