Xpert - 25 Most recent items matching the search terms - http://www.pat.comThis RSS feed contains the 25 most recently submitted items from Xpert, matching the search terms - Xperten-gbhttp://creativecommons.org/licenses/by-nc-sa/2.0/uk/ Xpert<![CDATA[2.1.1 Try some yourself]]>

Activity 15

The size of a population of micro-organisms doubles every hour. If there are two of these creatures to start with, how many will there be after five hours?

Activity 15

The size of a population of micro-organisms doubles every hour. If there are two of these creatures to start with, how many will there be after five hours?

<![CDATA[2.3 Multiplying powers]]>Powers of ten can be used to investigate what happens when two powers of the same number are multiplied together. For example, consider multiplying 10 by 100:

A billion is a thousand million. In terms of powers this is:

A billion is a thousand million. In terms of powers this is:

But look at the calculation again. Using the]]>
Now look at what happens when the power is negative. What does 10^{−3} mean? What is the result of the following calculation?

100 ÷ 100 000

What you are actually being asked to find is:

But look at the calculation again. Using the]]>
<![CDATA[5.2 Doing and undoing]]>Now try the following.

Think of a number. Add 4. If my answer is 11, can you work out what number I was thinking of?

You might have said ‘What number do I have to add on to 4 to get 11?’ or perhaps ‘If I take away 4 from 11 what number do I get?’ In both cases you should have arrived at the answer 7.

In the second method ‘subtracting 4’ undoes the ‘adding 4’ in the original instructions.

This process can be illustrated by a ‘doing–undoing diagram’]]>
Now try the following.

Think of a number. Add 4. If my answer is 11, can you work out what number I was thinking of?

You might have said ‘What number do I have to add on to 4 to get 11?’ or perhaps ‘If I take away 4 from 11 what number do I get?’ In both cases you should have arrived at the answer 7.

In the second method ‘subtracting 4’ undoes the ‘adding 4’ in the original instructions.

This process can be illustrated by a ‘doing–undoing diagram’]]>
<![CDATA[6.2 Inverse proportion]]>The second type of proportional relationship is known as inverse proportion.

Suppose you have decided to hire a taxi to take a group of colleagues from work to the railway station. If the taxi firm charges a set fee for the journey, then the more people who go in the taxi, the less each person has to pay: if two people go, each pays half the cost; if three people go, each pays a third of the cost and if four people go, each person pays a quarter of the cost. This is an exa]]>
The second type of proportional relationship is known as inverse proportion.

Suppose you have decided to hire a taxi to take a group of colleagues from work to the railway station. If the taxi firm charges a set fee for the journey, then the more people who go in the taxi, the less each person has to pay: if two people go, each pays half the cost; if three people go, each pays a third of the cost and if four people go, each person pays a quarter of the cost. This is an exa]]>
<![CDATA[9 Patterns in nature and elsewhere]]>If you take a cauliflower and break off one of the florets, the floret appears to be just the same shape as the original cauliflower but on a much smaller scale.

InCopy-equipped photo editors, and they can import, manipulate, and edit images right in the layout.]]>
InCopy-equipped photo editors, and they can import, manipulate, and edit images right in the layout.]]>
<![CDATA[Getting Started: 04 Adding text and images]]><![CDATA[American Interventionists Hurt the Cause of Freedom in Venezuela]]>The United States has a long, violent history of intervention in Latin America, although few Americans know about it. Were one to ask the average American, for example, about the US occupation of the Dominican Republic — which lasted for eight years from 1916 to 1924 — one is likely to only receive a blank stare in return.

Even in the cases of those interventions which are more famous — such as the Spanish-American War or the Panama invasion of 1989 — details remains virtually ]]>
The United States has a long, violent history of intervention in Latin America, although few Americans know about it. Were one to ask the average American, for example, about the US occupation of the Dominican Republic — which lasted for eight years from 1916 to 1924 — one is likely to only receive a blank stare in return.

Even in the cases of those interventions which are more famous — such as the Spanish-American War or the Panama invasion of 1989 — details remains virtually ]]>
<![CDATA[Five Reasons for the Weakness of the Argentine Economy]]>Argentina has been “printing money for the people” MMT-style for many years. Its wrongly-called “inclusive monetary policy” of the past-print money to finance massive government spending- has driven the country to massive inflation and depression.

This is the main reason why a country with an excellent education, human capital, and high economic potential has third-world inflation rates.

Argentina inflation rose to 54% annualized last week. Bonds spreads soared to 854 Bp]]>
Argentina has been “printing money for the people” MMT-style for many years. Its wrongly-called “inclusive monetary policy” of the past-print money to finance massive government spending- has driven the country to massive inflation and depression.

This is the main reason why a country with an excellent education, human capital, and high economic potential has third-world inflation rates.

Argentina inflation rose to 54% annualized last week. Bonds spreads soared to 854 Bp]]>
<![CDATA[Billionaires Aren't Quite As Rich as We Think They Are]]>One of the most enduring justifications for state intervention in an economy is the concept of wealth inequality. As the story goes, just 1% of the population owns roughly half of the wealth in the world. This is used as justification for a long range of programs, such as welfare, the graduated income tax, and multiple components of the Green New Deal. However, the problem with this narrativ]]>
One of the most enduring justifications for state intervention in an economy is the concept of wealth inequality. As the story goes, just 1% of the population owns roughly half of the wealth in the world. This is used as justification for a long range of programs, such as welfare, the graduated income tax, and multiple components of the Green New Deal. However, the problem with this narrativ]]>
<![CDATA[Praxeology and the Method of Economics]]>Dr. Joe Salerno joins Jeff Deist to explore another foundational topic: the method of economics. Mises developed praxeology, perhaps his most controversial contribution to economic science. Praxeology starts with fundamental axioms, then derives economic theory by working logically through a deductive process. As such, praxeology is at odds with logical positivism and empiricism—and presents a markedly different approach to economics.

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Hosted by Young Americans for Liberty at Auburn University and the Mises Institute. Recorded 20 April 2019 at the Mises Institute in Auburn, Alabama.]]>
<![CDATA[A Non-Libertarian Approach to Drug Legalization]]>Hosted by Young Americans for Liberty at Auburn University and the Mises Institute. Recorded 20 April 2019 at the Mises Institute in Auburn, Alabama.]]>
Hosted by Young Americans for Liberty at Auburn University and the Mises Institute. Recorded 20 April 2019 at the Mises Institute in Auburn, Alabama.]]>
<![CDATA[Want to Build a Smart City? Here Are Some Strategies That Work]]>]]>
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<![CDATA[Beyond Clicks: Getting the Most out of Big Data]]>]]>
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<![CDATA[Banking on the Future of Cryptocurrencies]]>]]>
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<![CDATA[Don’t Panic: The Digital Revolution Isn’t as Unusual as You Think]]>]]>
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<![CDATA[Ordering Fractions | 4th Grade | Khan Academy]]>