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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.

The ratio given tells us that our paint mixture of 18 litres consists of 3 + 2 = 5 parts.

Each part therefore consists of 18/5 = 3.6 litre...

VO
Answered by Vicente O. Maths tutor
3688 Views

How does Shakespeare use Poetic Language in Romeo & Juliet?

The use of poetic language in Romeo & Juliet throughout the play is both consistent and wildly contrasting at different points, with both poetry and prose being used throughout. Upon Analysis, we may ...

CD
12492 Views

A curve C has the equation x^3 + 2xy- x - y^3 -20 = 0. Find dy/dx in terms of x and y.

Every term needs to be differentiated in terms of x:

For the x3 term, differentiated it becomes 3x2 (multiply the whole term by the initial p...

ST
Answered by Seb T. Maths tutor
10783 Views

Why is the derivative of a function its gradient?

So, the easiest way to start thinking about this is by looking at straight lines. The gradient of a straight line is just its slope, which is the difference in the y values between any two points...

CG
Answered by Connor G. Maths tutor
6399 Views

What are the main macroeconomics variables?

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