fishesforever2321

09.08.2019 • 

Mathematics

Tom and linda stand at point a. linda begins to walk in a straight line away from tom at a constant rate of 2 miles per hour. one hour later, tom begins to jog in a straight line in the exact opposite direction at a constant rate of 6 miles per hour. if both tom and linda travel indefinitely, what is the positive difference, in minutes, between the amount of time it takes tom to cover the exact distance that linda has covered and the amount of time it takes tom to cover twice the distance that linda has covered?

Ответ:

wilkinsonei4069

09.08.2019

Mathematics

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imo e - 108

case 1: 6∗t1=12∗(t1+1)∗2=> t1=156∗t1=12∗(t1+1)∗2=> t1=15 hour = 12 minutes

case 2: 6∗t2=2∗(t2+1)∗2=> t1=2=1206∗t2=2∗(t2+1)∗2=> t1=2=120minutes

difference = 120-12 = 108 minutes

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Ответ:

jeff6284

20.02.2022

Mathematics

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The answer is C.40 units

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