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Solve the simultaneous equations (1) 2x+3y=3 and (2) 3x+2y=7

Remember we can multiply both sides of an equation by the same thing without changing the meaning of the equation. Multiplying equation 1 by 2 gives 4x+6y=6 and multiplying equation 2 by 3 gives 9x+6y=21 . S...
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Answered by Zoe L. • Maths tutor
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Unseen Papers

How to answer them: Reading through the text twiceHighlighting key words or phrasesIdentifying devices that have been employed, and gaining what their effect is Looking at the overall message of the textAnal...
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Give 3 ways in which aerobic respiration differs from anaerobic respiration in muscles.

Aerobic respiration uses oxygen/O2 while anaerobic respiration doesn't use oxygen.Aerobic respiration produces carbon dioxide/CO2 as a waste product while anaerobic respiration doesn't (it produces lactic ac...
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Answered by Sarah G. • Biology tutor
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Are living standards always lower in developing countries than developed countries?

Again, structure is really important here. Looking at why they might be lower:GDP per capitaInfluence of population growth Dependency ratios Life expectancySector employment (developing countries have more p...
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Answered by Lottie W. • Economics tutor
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How justifiable was the Treaty of Versailles at the time?

First, one would outline some of the terms of the Treaty, showing an understanding of what it entailed It's important to know who the main actors were at the time, so one would look at:(1) Clemenceau ("...
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Answered by Lottie W. • History tutor
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