SOLUTION: Jenna is twice as far from the finish line as she is from the start of a 10 km race. how far has she ran?

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Question 522533: Jenna is twice as far from the finish line as she is from the start of a 10 km race. how far has she ran?
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Jenna is twice as far from the finish line as she is from the start of a 10 km race. how far has she ran?
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Let distance from start be "x" km.
Then distance from finish line is "2x":
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Equation:
x + 2x = 10 km
3x = 10 km
x = 3 1/3 km (distance Jenna has run)
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Cheers,
Stan H.
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