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When the interest rate is high in a country it encourages investors to convert their money, e.g. into pounds, and invest their money in the country. The price change can be traced back to basic supply and...

The demand curve shows how different prices of a commodity affect the quantiy demanded by consumers.Price is always show on the y-axis (vertical) and quantity on the x-axis (horizontal). These two variabl...

Let's solve for x first by substituting y in terms of x.

4x-y=30

y=4x-30

3x+2y=3x+2(4x-30)=3x+8x-60=11x-60

11x-60=17

11x=77

x=7

Now let's solve for y by su...

Salamanca está en la parte central de España, a 212 kilómetros al oeste de Madrid. Su Plaza Mayor es el punto de encuentro más popular.  La gente pasa mucho tiempo allí charlando, tomando el sol o disfrut...

A catalyst increases the rate of the reaction because: 

• They provide an alternative energy pathway that has a lower activation energy 

• This means that more particles hav...