Top answers

The price of a TV is reduced in a sale by 30%. If the sale price is £280 what was the original price?

A question from 13 + specimen paper. After the price of TV is reduced 30 % the price is £280. This means that £280 is 70% of the original price. Therefore if you make an equation 280 x 100 / 70 you will get ...
TK
Answered by Taeseong K. • Maths tutor
18502 Views

Expand (2x-3)(4x+4) using the FOIL method.

Question: Expand (2x-3)(4x+4) We will be using the FOIL method. FOIL is an ancronym: F=first O=outside I=inside L=last So, to begin, we start with the first term in each bracket, and multiply them together. ...
MW
Answered by Miriam W. • Maths tutor
11012 Views

How do I evaluate a source?

First rule of sources: don't simply claim bias. Bias means nothing without explanation and shouldn't be assumed, if you're going to dismiss a source because of this, you need an explanation such as 'this sou...
EH
Answered by Emily H. • History tutor
4706 Views

How to find y-intercept on a graphical calculator

Your graphical calculator is your best friend. Never leave home without it, providing you're going to a class or an exam. Using graphs we can work out intercepts; solve simulatneous equations and help you ou...
EH
Answered by Emily H. • Maths tutor
7239 Views

What role does the respiratory system play in humans?

The respiratory system is a collection of organs working together in order to oxygenate the blood and remove the waste product carbon dioxide. The respiratory system uses a method of gaseous exchange in the ...
KM
Answered by Kelsey M. • Biology tutor
4044 Views