Two cars leave town A at the same time and travel to town B, 480 miles away. The speed of the slower car is 20 mph less than the speed of the faster car. If the slower car arrives at town B two hours after the faster car, what is the speed of the slower car?

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A:

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A:

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A: The solution is :

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A:

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.