exam Maths Puzzle Numerical Ability

Solve the following system of equations. If the system cannot be solved, state that it cannot be solved and explain why.
3x-2y=4
2x-5y=21

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exam Other Question

The following pie chart represents the eye color of students in a certain class.

OTHER = 17%
BLUE = 33%
BROWN = 50%

If there were 50 students in the class, how many students had brown eyes? Find AB if the coordinate of A is -5 and the coordinate of B is 17.