SOLUTION: how much longer does it take to drive through a two-mile work zone at 45mph instead of a 65mph

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Question 369606: how much longer does it take to drive through a two-mile work zone at 45mph instead of a 65mph
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Rate*Time=Distance
R%2At=D
t=D%2FR
t%5B1%5D=2%2F45
t%5B2%5D=2%2F65
t%5B2%5D-t%5B1%5D=2%281%2F45-1%2F65%29
t%5B2%5D-t%5B1%5D=2%2865%2F%2845%2A65%29-45%2F%2845%2A65%29%29
t%5B2%5D-t%5B1%5D=2%28%2865-45%29%2F%2845%2A65%29%29
t%5B2%5D-t%5B1%5D=2%2820%2F%2845%2A65%29%29
t%5B2%5D-t%5B1%5D=40%2F%2845%2A65%29%29
t%5B2%5D-t%5B1%5D=8%2F%289%2A65%29%29
highlight%28t%5B2%5D-t%5B1%5D=8%2F585%29hr