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Maths Puzzle
Numerical Ability
An airplane flew for 4 hours with a 20 km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
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He is the question below. I need to define the variable for x and y, write the appropriate equations, and solve the equation by either substitution, addition, or graphically. Thank
What is the standard form of an equation that passes through the points,
(14, 8) and (3, 11) ?