exam Maths Puzzle Numerical Ability

Solving inequalities with two variables

I need an example of this and a way to solve it.
thank you

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exam Other Question

without graphing, determine which of the following 3 points:
P1 = (8,6)
P2 = (2,5)
P3 = (4,1)
are part of the graph of the following system:
y - 10x <= 0
2y - 3x >= 0
y + x <= 15 Running Track. The inside of the running track in the diagram is formed by a rectangle and 2 half circles. Fine the distance to the nearest yard, around the inside of the track. T