A Key to the Elementary Treatise on AlgebraNichols & Hall, 1842 - 56 σελίδες |
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Σελίδα 22
... coffee and 300 lbs . of tea ; he sold 160 lbs . of coffee and 200 lbs . of tea . 11. 200 eggs at 2 for a cent ; 100 at 5 for 3 cents 12. Smaller 75 , larger 100 gallons . 13. Wheat 9s . , oats 3s . per bushel . 14. Larger 160 , smaller ...
... coffee and 300 lbs . of tea ; he sold 160 lbs . of coffee and 200 lbs . of tea . 11. 200 eggs at 2 for a cent ; 100 at 5 for 3 cents 12. Smaller 75 , larger 100 gallons . 13. Wheat 9s . , oats 3s . per bushel . 14. Larger 160 , smaller ...
Σελίδα 30
... per hour . 9. $ 100 . 10. 80 feet . 11. Coffee $ 0.10 , tea $ 0.50 per pound . 12. 4 rods . 13. 225 . 14. 5 sons . 15. 12 fowls . 16. A's stock $ 100 . 17. 2 rods . 8. 10 gallons . ART . 100 . 1 . Performed . 2 . 30 XXXIII KEY .
... per hour . 9. $ 100 . 10. 80 feet . 11. Coffee $ 0.10 , tea $ 0.50 per pound . 12. 4 rods . 13. 225 . 14. 5 sons . 15. 12 fowls . 16. A's stock $ 100 . 17. 2 rods . 8. 10 gallons . ART . 100 . 1 . Performed . 2 . 30 XXXIII KEY .
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1+m+ 14th performed 1st and 2d 24 a b² 2d and 3d 2d performed 5th inclusive 80 miles a b c a+b)² a+b+c)3m a² a² a² b² a² b³ a² c² a² x a²bc a³ b3 a³ c² a³ d² a5 b² ac² ap(m+n b c x b² c² b² c³ b³ c² b³ c³ breadth bushel c x y² c² d² cents chaise Changing the sign cows equation gives Hence learner verify m² n m² x4 m²+1 miles per hour np-mq number killed original equations preceding formulæ represent the number sheep subtracting and canceling Wheat x y³ x2 y x² y² x² y³ x³ y x5 y³ x6 y³ y¹º y⁹ yards