SOLUTION: Jacob left the movie theater and traveled toward the lake an average speed of 50 Km/h. Jenny left sometime later after traveling in the opposite direction with an average speed up

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Question 1184335: Jacob left the movie theater and traveled toward the lake an average speed of 50 Km/h. Jenny left sometime later after traveling in the opposite direction with an average speed up 70 km/h. After Jacob had traveled for six hours they were 440 km apart how long did Jenny travel
Found 3 solutions by ikleyn, MathTherapy, josgarithmetic:
Answer by ikleyn(52787)   (Show Source): You can put this solution on YOUR website!
.
Jacob left the movie theater and traveled toward the lake an average speed of 50 Km/h.
Jenny left sometime later after traveling in the opposite direction with an average speed up 70 km/h.
After Jacob had traveled for six hours they were 440 km apart how long did Jenny travel
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The solution is in one line. 


    how long did Jenny travel  =  =  =  = 2 hours.    ANSWER

Solved.



Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
Jacob left the movie theater and traveled toward the lake an average speed of 50 Km/h. Jenny left sometime later after traveling in the opposite direction with an average speed up 70 km/h. After Jacob had traveled for six hours they were 440 km apart how long did Jenny travel 
Since Jacob had traveled for 6 hours when they were 440 km apart, then distance he'd traveled was: 50(6) = 300 km

Therefore, since they were 440 km apart, Jenny had traveled 440 - 300, or 140 km

And so, time Jenny took to get to point at which they were 440 km apart =  

Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
 , Jenny's time


               SPEED       TIME      DISTANCE
Jacob          50           6        50*6
Jenny          70           X        70X
Separation                           440





















 

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