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KEY

TO THE

ELEMENTARY TREATISE

ON

ALGEBRA.

BY THOMAS SHERWIN, A. M.

Principal of the English High School, Boston.

BOSTON:
BENJAMIN B. MUSSEY.

1842.

Edua T128.42.78%
FE4758 1937, su

Gift of
Math20237-9001, S. A. Groen

Boston.

Entered according to act of Congress, in the year 1842,

By Thomas SHERWIN, in the Clerk's Office of the District Court of Massachusetts.

KE Y.

[In the first edition of the Algebra, the Articles are numbered erroneously from the commencement of Section XXVI. To make that edition correspond with the Key, increase by 2 the number of each Article, commencing with the Section specified.]

SECTION 1.

ART. 4.

1. Performed. 2. Horse $100. Saddle $10. 3. 6 bushels of each. 4. 11 of each. 5. 5 melons; 10 pears; 30 peaches. 6. 15 days. Man $20; boy $10. 7. 105, 210, and 315. 8. 25, 35, and 40. 9. 10 hours. One goes 80 miles, the other 70 miles. 10. 1st 8, 2d 16, 3d 24 guineas. 11. Wife $36000; elder son $27000; younger son $18000. 12. 120 cavalry; 360 artillerymen; 720 infantry. 13. A 8 days, 72 rods; B 16 days, 112 rods; C 80 days, 400 rods. 14. 8 yds, 16 yds, and 24 yds respectively. 15. Sheep $2; calf $4; cow $20. 16. Greater 14 galls; less 7 galls. 17. Beef 10 lbs; mutton 20 lbs. 18. 32 of each. 19. 80 guineas; 240 crowns. 20. 10, 20, 30, 60 and 30 miles, on the respective days.

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