# Tevin and Riley are 280 feet apart when they start walking toward one another. Riley walks twice as fast as Tevin so whenever Tevin travelsx feet, Riley travels 2x feet. Let x represent the number of feet Tevin has traveled since he started walking toward Riley.Write an expression in terms of x to represent the distance (in feet) between Tevin and Riley.Let d represent the distance (in feet) between Tevin and Riley. Write a formula that expresses d in terms of x.

Unitary Method

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Tevin and Riley are 280 feet apart when they start walking toward one another. Riley walks twice as fast as Tevin so whenever Tevin travels

x feet, Riley travels 2x feet. Let x represent the number of feet Tevin has traveled since he started walking toward Riley.

Write an expression in terms of x to represent the distance (in feet) between Tevin and Riley.

Let d represent the distance (in feet) between Tevin and Riley. Write a formula that expresses d in terms of x.

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