math

jamie ran two laps around a track in 99 seconds. how long did it take him to run each lap if he ran the first lap 8.5m/s and the second at 8.0m/s?

Let t be the first lap time and L be the length of one lap.

8.5 m/s * t = L
8 m/s * (99-t) = L

These two equations in two unknowns can be solved for both L and t.

  1. 👍 0
  2. 👎 0
  3. 👁 158
asked by jean
  1. 51 seconds

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    Jamie ran two laps around a track in 99 s. How long did it take him to run each lap if he ran the first lap at 8.5 m/s and the second at 8.0 m/s?

    asked by Kevin on November 16, 2012
  2. math

    Ben, Ray, and Lee ran laps around the school track. Ben ran 2 times as many laps as Ray. Lee ran 3 laps, which is one-half of the number of laps that Ray ran. How many laps did Ben run?

    asked by johnathan duro on August 24, 2015
  3. math

    Maria ran 4 laps of the track at the same pace. If it took 4 1/2 minutes to run the first 3 laps how long did it take her to run all 4 laps

    asked by jasmine on January 10, 2013
  4. math

    A relay with n laps was run by 4 people. The first runner ran half the laps. The second runner ran half the amount of laps the first runner ran. The third runner ran half the amount of laps the second runner ran. The remaining

    asked by Tomas on November 14, 2013
  5. Math

    Jill and Matt run on a 400-meter-long oval track. They each run 10 laps daily and both run in the same lane. One day, they begin at the same point, but ran in opposite directions. Jill ran at a constant speed that was 2 meters per

    asked by Natalie on October 22, 2008
  6. math!!!!

    One lap around the track is equal to 1/8 of a mile. A horse ran a distance of 9 laps in 2 minutes and 30 seconds. What was the horse's average speed in miles per minute?

    asked by Lidia on February 9, 2014
  7. Math

    One lap around a track is one-eighth of a mile. A horse ran a distance of 11 laps in 3 minutes and 30 seconds. What was the horse's average speed in miles per minute?

    asked by Adriana on May 24, 2017
  8. math

    One lap around a track is equal to one-sixth of a mile. A horse ran a distance of 7 laps in 3 minutes and 20 seconds. What is the horse’s average speed in miles per minute? HELPPP PLEASE!!!!!!

    asked by makayla on May 8, 2017
  9. math

    Todd run 8 laps around a 400-meter track on Monday, 4 laps on Tuesday, 8 laps on Wednesday, 4 laps on Thursday, and 8 laps on Friday. How many kilometers did he run?

    asked by Edward on May 19, 2015
  10. Physics

    Randi ran two laps around a 400m track.She completed the first lap in 50seconds and then decreased her speed by 5% for the second lap. Find: A)her speed on the first lap B)her speed on the second lap C)her total time for the two

    asked by Physic inexpert on November 3, 2019

More Similar Questions