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" What two numbers are those whose sum, multiplied by the greater, is equal to 77 ; and whose difference, multiplied by the lesser, is equal to 12 ? Ans. "
Key to Davies' Bourdon: With Many Additional Examples, Illustrating the ... - Page 91
by Charles Davies, M. Bourdon (Louis Pierre Marie) - 1856 - 205 pages
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Mathematics: Compiled from the Best Authors and Intended to be the ..., Volume 1

Samuel Webber - Mathematics - 1801
...its two digits, the quotient is 3 ; arid if 18 be added to it, the digits will be inverted ? Ans. 24. 9. What two numbers are those, whose sum multiplied...equal to 77 ; and whose difference multiplied by the less is equal to ia ? Ans. 4 and 7. i o. When will the hour, minute and second hands of a clock be...
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An Introduction to Algebra: With Notes and Observations: Designed for the ...

John Bonnycastle - Algebra - 1811 - 220 pages
...its two digits, the quotient is 3; and, if 18 be added to it, the digits will be inverted? Ans. 24. 9. What two numbers are those whose sum, multiplied...difference, multiplied by the lesser, is equal to 1 2 1 Ans. 4 and 7, or $v/2 and yv/2 10. To find a number such that if you subtract it from 10, and...
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A Treatise on Algebra, in Practice and Theory: With Notes and Illustrations ...

John Bonnycastle - Algebra - 1813
...and gained by the bargain as much as one piece cost him ; required the number of pieces. Ans. 15 12. What two numbers are those, whose sum, multiplied by the greater, is equal to 77j an( whose difference, multiplied by the less, is equal to 12. Ans. 4 and 7 13. A grazier bought...
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An Introduction to Algebra: With Notes and Observations : Designed for the ...

John Bonnycastle - Algebra - 1818 - 260 pages
...gained by the bargain as much as one piece cost him ; required the number of pieces. Ans. 15 M 12. What two numbers are those, whose sum, multiplied...equal to 77, and whose difference, multiplied by the less, is equal to 12. Ans. 4 and 7 13. A grazier bought as many sheep as cost him 601., and after reserving...
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An Elementary Treatise on Algebra

Bewick Bridge - Algebra - 1818 - 227 pages
...41 , 1681 1369 By RULE I, ,-_ + ш=-ш-; 41 37 4137 13 1 Let „4 then ^=^===9, or y=33 Ex.2. What two numbers are those, whose sum multiplied by the greater is 77? and whose difference multiplied by the, lesser is equal to 1 2 ? . Let x — greater number, у...
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A Treatise on the Elements of Algebra

Bewick Bridge - Algebra - 1821 - 227 pages
...+ 4 ^ + 4 41 x=vy=\ x 3=1 Ex.2. What two numbers are those, whose sum multiplied hy the greater is 77? and whose difference multiplied by the lesser is equal to 12 ? Let a; = greater number, y = lesser. Then (x + y)xx=s.Tt?+xy=77, and (x — y) xy=xy — if=l'2, Assume...
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An Elementary Treatise on Algebra: Theoretical and Practical

James Ryan - Algebra - 1824 - 516 pages
...the following problem. Prob. 3.. What two numbers are those, whofe sum multiplied by the greater is 77 ; and whose difference, multiplied by the lesser, is equal to 12 ? Let ;cy=thc greater, and a = the lesser; then by the problem, x2y2 +o;^/ = 77, and x2y — a:2 = 12 ; 77...
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An Elementary Treatise on Algebra, Theoretical and Practical ...

James Ryan - Algebra - 1824 - 516 pages
...of the unknown quantities, will appear evident, from the solution of the following problem. Prob. 3. What two numbers are those, whose sum multiplied by the greater is 77 ; anil whose difference, multiplied by the lesser, is equal to 12 : Let xy=tite greater, and z =...
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An Introduction to Algebra: With Notes and Observations, Designed for the ...

John Bonnycastle - Algebra - 1825 - 312 pages
...and gained by the bargain as much as one piece cost him ; required the number of pieces. Ans. 15 12. What two numbers are those, whose sum, multiplied...equal to 77, and whose difference, multiplied by the less is equal to 12. Ans. 4 and 7 13. A grazier bought as many sheep as cost him 601., and after reserving...
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A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - Mathematics - 1825 - 372 pages
...the product of the sura and remainder will also be 12O ; what are these numbers ? Ans. 15 and 8. 11. What two numbers are those whose sum multiplied by the greater is equal to 77 au(l whose difference multiplied by the lesser is equal to 12 ? Ans. 4 and 7. 12. To resolve the...
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