exam Maths Puzzle Numerical Ability

Solve each system:

5x+6y+8=0
3x-2y16=0

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exam Other Question

Find the slope of the line through points (10,-7) and (-3,-2? The 42km drive from Oakdale to Ridgemont usually takes 28 min. Because highway construction requires a reduced speed limit, the trip now takes 14 min longer. Find the reduced speed limit in km/h.