Erik and Kelsey are 240 feet apart when they start walking toward one another. Kelsey walks twice as fast as Erik so whenever Erik travels z feet, Kelsey travels 2x feet. Let z represent the number of feet Erik has traveled since he started
walking toward Kelsey.
a. Write an expression in terms of x to represent the total number of feet Erik and Kelsey have walked toward one
another.
2x+x
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b. Write an expression in terms of x to represent the distance (in feet) between Erik and Kelsey.
240/x
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c. Let d represent the distance (in feet) between Erik and Kelsey. Write a formula that expresses d in terms of z.
240=d-3x
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