Question 241646
:::::::Rate * Time = Distance
Julia::250..*..t...= 250t
Ferris:230..*..t...= 230t
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I'm rather confused with a certain problem:
Ferris and Julia jog around a circular track that is 500 meters long. Julia's rate is 250 meters per minute, while Ferris's rate is only 230 meters per minute. In how many minutes will Julia be a full lap ahead? 
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Equation:
Julia distance - Ferris distance = 500 meters
250t - 230t = 500
20t = 500
t = 25 minutes (time Julia will require to have a 500 meter lead on Ferris)
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Cheers,
Stan H.