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50 people ate a snack , some had apples some had biscuits the rest had banana. 21 people were male the rest female. 6 out of 8 people who had apples were female. 18 people had biscuits. 9 females had bananas. How many males had biscuits?

Write down all the information they have given you so There is 50 people 21 male so therefore 50 -21 = 29 females It says 6 out of 8 people who had apples were female so that means 8 people had apples Apples...
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Answered by Amelia D. • Maths tutor
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Find the gradient of the curve y=sin(x^2) + e^(x) at the point x= sqrt(pi)

y=sin(x 2 ) + e x Firstly we need to differentiate. dy/dx = 2xcos(x 2 ) + e x using the chain rule Notice the gradient at x = sqrt(pi) is found when we sub x into dy/dx Hence dy/dx = 2*sqrt(pi) cos( sqrt(pi)...
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Answered by Jordan R. • Maths tutor
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Write 0.2(54) as a fraction in its simplest form. (Where 0.2(54) = 0.254545454...)

Let x = 0.2(54) = 0.2545454... Then 100x = 25.454545... = 25.4(54) So 99x = 100x - x = 25.4(54) - 0.2(54) = 25.2 Hence 990x =252 Therefore x = 252/990 = 14/55
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Answered by Matt H. • Maths tutor
7946 Views

Find the indefinite integral of Ln(x)

This question requires integration by parts, using the formula: Integral(u dv) = u v - integral(v du) This is applied to find the integral of Ln(x) by writing Ln(x) as 1 * Ln(x), u is then Ln(x) and dv is 1....
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Answered by Tutor66529 D. • Maths tutor
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I struggle with time management whilst doing an exam paper. How will I be able to answer every question in the time given for the exam?

The best way to improve time management is by practising past papers. These can be found on your exam board website e.g. AQA, Edexcel etc. By completing a past exam paper under timed conditions you are putti...
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Answered by Ruby P. • Maths tutor
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