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Help with my math homework please!!!!!

An airline offers daily flights between Chicago and Denver. the total monthly cost "C" (in millions of dollars) of these flights is c= square root of (0.2x +1) where x is the number of passengers in thousands. the total cost of the flights for June is 2.5 million dollars. how many passengers flew in June?

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2.5= sqrt .2x+1. Sq both sides.
6.25=.2x +1.
5.25=.2x.
26.26=x. That's in thousands, so.....26,260 people

Helpful (1) Fun Thanks for voting Comments (2)
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thanks a lot I get It know I didn't get the square root
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Squaring will knock off a sqrt
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