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How to multiply and divide mixed fractions

Multiply: First have to make the fraction whole. To do this we multiply the first number by the denominator. Then we add it to the numerator to get a top heavy fraction. Now we can simply multiply the two nu...
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Answered by Daniel W. • Maths tutor
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Outline Bowlby’s evolutionary theory of Attachment

According to Bowlby, attachment is an innate behavioural system that has evolved because of its survival value. Bowlby posits a ‘sensitive period’ , during which an infant is particularly sensitive to specif...
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Answered by Chloe B. • Psychology tutor
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What is the difference between a one-tailed and two-tailed hypothesis? How Would you operationalise a hypothesis?

A o ne-tailed hypothesis predicts the direction of the results , whereas a two-tailed hypothesis does not. A two-tailed hypothesis simply states there will be an effect of the Independent variable on the dep...
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Answered by Chloe B. • Psychology tutor
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Water is flowing into a rightcircular cone at the rate r (volume of water per unit time). The cone has radius a, altitude b and the vertex or "tip" is pointing downwards. Find the rate at which the surface is rising when the depth of the water is y.

Always a good first step to a problem like this, is to draw a diagram, making sure to label any lengths. The unknown in this question, is the rate at which the surface of water, in the cone, is rising. Howev...
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Answered by Joss O. • Maths tutor
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I'm struggling to revise for the listening section of the exam? i.e how do I remember my score annotations?

It's all about making the connections between what you're hearing and what you understand is going on. Your A-Level Anthology should be heavily annotated with all important explanations in there. The best wa...
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Answered by Cristina C. • Music tutor
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