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White paint costs £2.80 per litre. Blue paint costs £3.50 per litre. White paint and blue paint are mixed in the ratio 3 : 2 Work out the cost of 18 litres of the mixture.

3:2 means there are 5 parts. So 18 litres can be divided by 5, and the price of each part worked out individuallly. 18 / 5 = 3.6 To work out how much the white paint costs: 3.6 x £2.80 = £10.08 £10.08 x 3 (a...
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Answered by Sophia H. • Maths tutor
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Explain 3 ways in which a product can be designed ergonomically to suit a range of users

By producing a single product that is adaptable to different dimensions. This would allow it to provide a comfortable fit for the end user to suit the 5th to 95th percentile (for example an adjustable chair)...
PS
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You're a medical student shadowing a GP, the doctor leaves the room and the diabetic patient the GP is assessing confides in you that he put five teaspoons of sugar in his tea every time, he specifically wants you to not tell the GP. What should you do?

There are several aspects of this question to consider, think specifically about medical ethics and incorporate into your answers. Sugar in tea is evidently a bad idea for a diabetic and thus the patient is ...
MO
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Some substances can cross the cell-surface membrane of a cell by simple diffusion through the phospholipid bilayer. Describe other ways by which substances cross this membrane.

Other ways that substances can cross the plasma membrane include facilitated transport, where molecules or ions must interact with a channel/carrier protein to be transported across the membrane, down a conc...
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Answered by Sophia H. • Biology tutor
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Who votes for the Democratic Party and why?

The ‘Democratic Coalition’ consists of many differing groups with distinct policy priorities. One key group within the party’s base is African Americans who, after the passage of the Civil Rights Act in 1964...
JC
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