SOLUTION: “You travel the first 48 miles of a journey at an average of 36mph and the second 48miles at an average of V mph. what must V be if you want an average of 45mph over the 96 mile

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Question 1145576: “You travel the first 48 miles of a journey at an average of 36mph and the second 48miles at an average of V mph. what must V be if you want an average of 45mph over the 96 mile journey
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
           SPEED        TIME            DISTANCE

FIRST        36          48/36            48

SECOND       V           48/V             48

Totals                   48%2F36%2B48%2FV       96

%2848%2F36%2B48%2FV%29%2F96=1%2F45
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1%2F36%2B1%2FV=2%2F45
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27V=45%2A36
highlight%28V=60%29