Question 198990
Distance  =  Velocity  * Time
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Let  f  =  freeway  time,  let  t = town   time
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70 (f) + 35 (t) = 80
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but  f + t = 2,,,,,f = 2-t
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70(2-t) +35 (t)  = 80
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140 -70t +35t = 80
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-35 t =  -60
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t = 1.71 hrs
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f = 2- 1.71 = .29 hrs
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check
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70 (.29) + 35(1.71) = 80,,,,ok