Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 60 miles per hour. The westbound train travels at 80 miles per hour. How long will it take for the two trains to be 196 miles apart?

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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.