exam Maths Puzzle Numerical Ability

a sprinter has a bad start and his oponent is able to start 1 second before him. if the sprinter averages 8.2 meters per second and his oponent averages 8 meters per second, will he be able to catch his oponent before the end of the 200- meter race?

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exam Other Question
Use Cramer's rule to solve the following system of equations. If D=0, use another method to solve.
2x/3-5y/2=3/2
-x/4+5y/2=7/2 (x - 4)2 + y2 = 25
Find the x- and y-intercepts of the graph of the equation