SOLUTION: Lucas is running a race. He runs the first 800m at x m/s. He slows down by 3m/s for the final 400.His total time is 130 seconds. Find x.

Question 1095762: Lucas is running a race. He runs the first 800m at x m/s. He slows down by 3m/s for the final 400.His total time is 130 seconds. Find x.

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!

Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

Lucas is running a race. He runs the first 800m at x m/s. He slows down by 3m/s for the final 400.His total time is 130 seconds. Find x.

There's absolutely nothing wrong with the problem.
With x being average speed during 1st leg, the equation you need is:
Now solve for x.
That's all! Nothing COMPLEX!
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