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The work in an office takes 200 hours to complete every week. Each person in the office works 35 hours a week. What is the smallest number of people needed to complete the work?

To answer this question we need to divide the hours needed to complete work (200) by how much a person works a week (35). The key aspect of this question that catches people out is that when dividing 200 by ...
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Answered by Tom P. • Maths tutor
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What is Homeostasis?

Homeostasis is the maintenance of a constant internal environment within the body . This sounds quite confusing but don’t panic – in simpler terms, homeostasis is the process which works to keep the conditio...
YW
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Given a^2 < 4 and a+2b = 8. Work out the range of possible values of b. Give your answer as an inequality.

For this question, we want to start by finding the possible values of a from the first equation and then using that to give us information about b from the second equation. Now, the condition that a^2 &lt; 4...
FS
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Express 0.545454... as a fraction in its simplest form.

First, we are going to give our decimal a name, let's call it x. We notice that x repeats after two digits, so how about we look at 100x. 100x = 54.54545454... But, the decimal part of this number is what we...
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Answered by Felix S. • Maths tutor
32458 Views

What is osmosis?

Osmosis is the movement of water from a high concentration to a low concentration through a partially permeable membrane . It is a special type of diffusion. You may get questions asking you to decide which ...
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Answered by Yvonne W. • Biology tutor
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