 | Silvestre François Lacroix - Arithmetic - 1821 - 160 pages
...from what has been said, is, that the order of the terms of a proportion may be changed, provided they be so placed, that the product of the extremes shall be equal to that of the means. In the proportion 13: 18 : : 130 : 180, the lollowing arrangements may be made; for in each one of... | |
 | Leonhard Euler - Algebra - 1821 - 380 pages
...from what has been said, is, that the order of the terms of a proportion may be changed, provided they be so placed, that the product of the extremes shall be equal to that of the means. In the proportion 13 : 18 : : IS0 : 180, the following arrangements may be made; 13: 13: 180: 180:... | |
 | Silvestre François Lacroix - Arithmetic - 1825 - 404 pages
...from what has been said, is, that the order of the terms of a proportion may be changed, provided they be so placed, that the product of the extremes shall be equal to that of the means. In the proportion 13 : 18 : : 130 : 180, the following arrangements may be made; for in each one of... | |
 | Samuel Temple - Arithmetic - 1827 - 116 pages
...piece of ' work in 18 days, in what time •will 12 men do it ? 2. If 12 men do a piece, of work in 9 days, how long will it take 6 men to do the same work? mdamdm As 6 : 18 : : 152 As 12 : 9 : : 6 6 • 12 12)108(9 days. Ans. 6)108(18 days." ADS. 108... | |
 | Daniel Adams - Arithmetic - 1828 - 286 pages
...require, that the order of the terms of a proportion be changed. This may be done, provided the terms be so placed, that the product of the extremes shall...The number of days in which 6 men will do the work being the term sought, the. known term of the same kind, viz. 10 days, is made the third term. The... | |
 | Daniel Adams - Arithmetic - 1828 - 266 pages
...require, that the order of the terms of a proportion be changed. This may be done, provided the terms be so placed, that the product of the extremes shall...means. 4. If 3 men perform a certain piece of work ia 10 days, how long will it take 6 men to do the same ? The number of days in which 6 men will do... | |
 | Daniel Adams - Arithmetic - 1830 - 294 pages
...require, that the order of the terms of a proportion he changed. This may be done, provided the terms be so placed, that the product of the extremes shall...The number of days in which 6 men will do the work being the term sought, the known term of the same kind, viz. 10 days, is made the third term. The two... | |
 | Daniel Adams - Arithmetic - 1830 - 280 pages
...require, that the order of the terms of a proportion be changed. This may be done, provided the terms be so placed, that the product of the extremes shall...The number of days in which 6 men will do the work being the term sought, the known term of the same kind, viz. 10 days, is made the third term. The two... | |
 | Daniel Adams - Arithmetic - 1831 - 276 pages
...require, that the order of the terms of a proportion be changed. This may be done, provided the terms be so placed, that the product of the extremes shall...The number of days in which 6 men will do the work being the term sought, the known term of the same kind, viz. 10 days, is made the third term. The two... | |
 | Daniel Adams - Arithmetic - 1833 - 268 pages
...require, that the order of the terms of a proportion be changed. This may be done, provided the terms be so placed, that the product of the extremes shall...The number of days in which 6 men will do the work being the term sought, the known term of .the same kind, viz. 10 days, is made the third term. The... | |
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This may be done, provided the terms be so placed, that the product of the extremes shall be equal to that of the means. 4. If 3 men perform a certain piece of work in 10 days, how long will it take 6 men to do the same ? The number of days in which 6... 
