An airplane flies at a constant speed. It can travel a distance (d) of 1,800 kilometers in 2 hours (t). Write an equation in the form of d=rt that represents the relationship between distance (d) and time (t), where r is the constant of proportionality.

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d = 900t since you already know two parts of the data you just have to divide them to get the constant of proportionality (slope) which is 900 so then you use the data to write out an equation

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