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11-11-2014
Mathematics

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Jayson’s car can go 300 miles on 12.5 gallons of gasoline. How far can he drive on 42 gallons of gas?

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11-11-2014

[tex]300\ miles\ on\ 12,5\ gallons\\ x\ miles\ \ on\ \ \ 42\ gallons\\\\ Making\ proportion:\\ 300-12,5\\ x-42\\\\ Cross\ multiplication\\ 300*42=12,5x\\\\12600=12,5x\ \ \ | divide\ by\ 12,5\\\\ x=1008\\\\ He\ can\ drive\ 1008\ miles\ on\ 42 \ gallons\ of\ gas.[/tex]

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