Question 198990: You can drive 70 mph on the freeway and 35 mph in town. If an 80 mile drive took you 2 hours, how long did you drive in town?
Found 2 solutions by solver91311, RAY100:
Answer by solver91311(24713)   (Show Source):
Answer by RAY100(1637)  (Show Source):
You can put this solution on YOUR website! 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
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