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Smith drives his car and covers 450 miles in 10 hours.


At the same speed, how many hours will it take to cover 540 miles?
Plz help

Verified Answer :

luana

\(450\ miles\ in\ 10\ hours\\\\ 540\ miles\ in\ x\ hour\\\\making\ proportion:\\ 450-10\\540-x\\\\cross\ multiplication\\\\ 450=540*10\\\\ 450x=5400\ \ \ \ \ | divide\ by\ 450\\\\ x=12\\\\ It\ will\ take\ 12\ hours.\)

450/10=540/x and than do cross multiply, 450x=5400 divide both side by 450 = 12 hours

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