SOLUTION: Ian and Carolyn are 200 feet apart when they begin walking directly toward one another. Ian travels at a constant speed of 2.5 feet per second and Carolyn travels at a constant spe

Question 1125933: Ian and Carolyn are 200 feet apart when they begin walking directly toward one another. Ian travels at a constant speed of 2.5 feet per second and Carolyn travels at a constant speed of 4.5 feet per second.
Let t represent the number of seconds that have elapsed since Ian and Carolyn started walking toward one another.
A) write an expression in terms of t that represent the number of feet Ian has traveled since he started walking toward Carolyn.
B) write an expression in terms of t that represents the number of feet Carolyn has traveled since she started walking toward ian.
C)write an expression in terms of t that represents the distance between Ian and Carolyn.
D) how many seconds after the two started walking will they reach each other ?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Ian and Carolyn are 200 feet apart when they begin walking directly toward one another.
Ian travels at a constant speed of 2.5 feet per second and Carolyn travels at a constant speed of 4.5 feet per second.
Let t represent the number of seconds that have elapsed since Ian and Carolyn started walking toward one another.
:
A) write an expression in terms of t that represent the number of feet Ian has traveled since he started walking toward Carolyn.
2.5t
B) write an expression in terms of t that represents the number of feet Carolyn has traveled since she started walking toward Ian.
4.5t
C)write an expression in terms of t that represents the distance between Ian and Carolyn.
200 - t(2.5+4.5)
D) how many seconds after the two started walking will they reach each other ?
7t = 200
t = 200/7
t = 28.57 sec
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