 | Isaac Dalby - Mathematics - 1806 - 526 pages
...Questions producing QUADRATIC EQUATIONS. 1. To find a number such, that if you subtract it from 30, and multiply the remainder by the number itself, the product shall be 2O9? Ans . 1 1 or 1 9. 2. The difference of two numbers is .5, and the difference of their cubes is... | |
 | John Bonnycastle - Algebra - 1811 - 230 pages
...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 multiply the remainder by the number itself, the product shall be 21. Ans. 7 or 3. 11. To divide 100 into two such parts, that the sum of their square roots may be 14. Ans. 64 and 36.... | |
 | John Bonnycastle - Algebra - 1818 - 284 pages
...squares shall be 818. Ans. 23 and 17 2. To find a number such, that if you subtract it from 10, and then multiply the remainder by the number itself, the product shall be 21. Ans. 7 or 3 3. It is required to divide the number 24 into two such parts, that their product shall be equal to... | |
 | Peter Nicholson - Mathematics - 1825 - 1046 pages
...; how many sheep did he buy ? Ans. 75. 15. To find a number such, that if you subtract it from 10, and multiply the remainder by the number itself, the product shall be 21. Ans. 7 or 3. 1 6. The sum of two numbers is 8, and the sum of their cubes is 152 ; what are the numbers ? Ans. 3... | |
 | John Bonnycastle - Algebra - 1825 - 336 pages
...shall be 818. Ans. 23 and 1 7. 2. To find a number such, that if you subtract it from 10, and then multiply the remainder by the number itself, the product shall be 21. Ans. 7 or 3 3. It is required to divide the number 24 into two such parts, that their product shall be equal to... | |
 | Bourdon (M., Louis Pierre Marie) - Algebra - 1831 - 446 pages
...to 12 ? Ans. 4 and 7, or | V2 and ',' V2. 18. To find a number such that if you subtract it from 10, and multiply the remainder by the number itself, the product shall be 21. Ans. 1or 3. 19. To divide 100 into two such parts, that the sum of their square roots may be 14. Ans. 64... | |
 | Charles Davies - Algebra - 1835 - 378 pages
...it. the digits will be inverted 1 Ans. 24. 8. To find a number such that if you subtract it from 10, and multiply the remainder by the number itself, the product shall be 21. Ans. 7 or 3. 9. Two persons, A and B, departed from different places at the same time, and travelled towards each... | |
 | Algebra - 1838 - 372 pages
...it. the digits will be inverted? Ans. 24. 8. To find a number such that if you subtract it from 10, and multiply the remainder by the number itself, the product shall be 21. Ans. 1 or 3. 9. Two persons, A and B, departed from different places at the same time, and travelled towards... | |
 | Bourdon (M., Louis Pierre Marie) - Algebra - 1839 - 368 pages
...it, the digits will be inverted 1 Ans. 24. 8. To find a number such that if you subtract it from 10, and multiply the remainder by the number itself, the product shall be 21. Ans. 7 or 3. 9. Two persons, A and B, departed from different places at the same time, and travelled towards each... | |
 | Algebra - 1839 - 368 pages
...it. the digits will be inverted ? Ans. 24. 8. To find a number such that if you subtract it from 10, and multiply the remainder by the number itself, the product shall be 21. An3. 7 or 3. 9. Two persons, A and B, departed from different places at the same time, and travelled... | |
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To find a number such that if you subtract it from 10, and multiply the remainder by the number itself, the product shall be 21. Ans. 7 or 3. 
