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Maths Puzzle
Ratio and Proportion
The New Zealand relay team finished second in the 800-meter freestyle relay with a time of 8:14.80. What was the average time for the four New Zealand swimmers?
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I am not sure how or if there is a solution for this:
solve for y: 1/2y + 2 = 1/6(3y-9)
complete the square of x2-4x=5