lolkimmyswag
contestada

Tony is competing in a marathon. He increases his pace in the last 5,000 meters of the race. His distance from the finish line, f(x), decreases at a constant rate of 250 meters per minute, x.

Select the correct statement.

It takes Tony 20 minutes to reach the finish line.

Tony reaches a maximum distance of 3,750 meters over the interval [6, 10].

Tony's speed increases to 225 meters per minute.

Tony's initial distance from the finish line at the time he increased his pace was 4,750 meters.

Tony is competing in a marathon He increases his pace in the last 5000 meters of the race His distance from the finish line fx decreases at a constant rate of 2 class=

Respuesta :

5000/250=20

so "It takes Tony 20 minutes to reach the finish line." is correct
carlosego
For this case, what we are going to do is write the linear function that models the problem.
 We have then:
 y = -250x + 5000
 Where,
 y: distance traveled
 x: time in minutes
 To reach the goal (y = 0) we have:
 0 = -250x + 5000
 250x = 5000
 x = 5000/250
 x = 20 minutes
 Answer:
 It takes Tony 20 minutes to reach the finish line.

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