exam Maths Puzzle Numerical Ability

t2 - 6t = -5

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exam Other Question

Solve each of the following systems by graphing.

x - 2y = 8
3x - 2y = 12 It takes a computer 8 days to print all of the letters for a sweepstakes. A new computer is purchased that can do the same job in 5 days. How long would it take both computers working on it.