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Five Chocolate bars cost £11. Three Chocolate Bars and two packs of Biscuits cost £13.6. How much does two Chocolate bars and one pack of biscuits cost.

We know from the question that 5C = £11, where C is number of Chocolate Bars. Therefore C= 11/5 which is £2.20.We also know that 3C + 2B = £13.6 where B is number of packs of Biscuits.Since we know what C...

Answered by Samuel S. • Maths tutor

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Explain the cycle of thermoregulation in humans

What is thermoregulation? A way to maintain the bodies temperature through feedback mechanisms to keep the temperature at 37 degrees, which is optimal for functioning. 2)What are the components of t...

Answered by Krupa T. • Biology tutor

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Solve y=x^2 - 1, y=5 - x

x= -3, y= 8 and x= 2, y= 3
(1) 5 - x = x^2 - 1(2) x^2 + x - 6 = 0(3) (x+3)(x-2) = 0(4) when x = -3, y= 5 - (-3) = 8(5) when x = 2, y= 5 -(2) = 3

Answered by Tamim B. • Maths tutor

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What is Pythagoras' Theorem and how do I use it?

Pythagoras' Theorem is used to find the length of the hypotenuse (longest side, opposite the 90 degree angle) of a right angled triangle when the length of ...

Answered by Sophie T. • Maths tutor

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Explain how two different species of rabbits could have developed from a common ancestor?

The population of rabbits (common ancestor) must have gotten seperated to form two populations. This could have happened due to a geographical barrier (such as an earthquake). These two ...

Answered by Precious J. • Biology tutor

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