Top answers
Maths
GCSE
Solve these simultaneous equations. 2x + y = 10 and 3x + 4y = 25.
2x + y = 10 (1)
3x + 4y = 25 (2)
1. Eliminate y.
Method 1:
(1) x 4:
A right-angled triangle has base 10cm and height 4cm. What is the area of the triangle?
The first thing we should note here is that we are looking for the area, so we need to recall the formula for the area of a right-angled triangle:
Area = (base x height) / 2
