how do ratios work
if x and y are in a ratio 3:2 you can write it as 3x=2y so if you are given a value for either you substitute it into this and rearange to get the other value. e.g y = 2 what is x? 3x=2(2) so 4=3x, x=3/4.
AM
Related Maths GCSE answers
All answers ▸Solve x^2 - 5x -14 = 0
A car costs £5,899.99, not including VAT. If the VAT rate is 20% how much does the car cost in total?
There are 40 counters in a bag. 13 are red, 20% are green and the rest are yellow. What proportion of counters are yellow?
The line l is a tangent to the circle x^2 + y^2 = 40 at the point A. A is the point (2, 6). The line l crosses the x-axis at the point P. Work out the area of triangle OAP.