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In a sports competition with 760 atheletes, the following pieces of information are true: 70% of the atheletes are runners, 40% of the men are not runners and 400 women are runners. How many women were there in total?

Firstly, we must identify the two things that we need to work out our answer. They are: How many male runners there are, and how many male non-runners there are, as once we have these, the remaining value wi...
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Answered by Ciaran C. • Maths tutor
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Can you explain the difference between joint demand and competitive demand?

Competitive Demand means You can derive equal satisfaction from either product e.g. substitutes like jam and marmalade. Therefore jam and marmalade are in competitive demand. Whereas goods in joint Demand a ...
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Answered by Sophie W. • Economics tutor
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Solve algebraically: 6a + b = 16 5a - 2b = 19

We have two algebraic equations and we are trying to find what a and b can equal to fit for both situations. 1. 6a + b = 16 2. 5a - 2b = 19 The easiest method is substitution because we can sub in an equatio...
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Answered by Sophie W. • Maths tutor
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Simplify: 2x + 6y + 2y - x

This is simplified by solving common terms (the x's and the y's). Where X and Y terms can't be solved together. Splitting it up: You can see 2x-x= x and for the Y terms (+)6y+2y=8y Therefore the final answer...
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Answered by Sophie W. • Maths tutor
4763 Views

How does actual economic growth differ to potential economic growth?

Actual economic growth can also be known as demand side economic growth because it is affected by changes in the demand in an economy. It is an increase in output as measured by real GDP/ national income. It...
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Answered by Sophie W. • Economics tutor
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