 | James Wood - Algebra - 1815 - 338 pages
...conclusions are in this case obtained, are in reality the operations of proportionals. (193.) DBF. 1. One quantity is said to, vary directly as another, when the two quantities depend wholly upon each other, and in ' such a manner, that if one be changed, the other is changed... | |
 | William Whewell - 1837 - 226 pages
...time; and this may be expressed by saying that the space varies as the time, or is as the time. 52. One quantity is said to vary directly as another when the two quantities depend wholly upon each other, in such a manner that if the one be changed the other is changed in... | |
 | Joseph Ray - Algebra - 1852 - 408 pages
...various values in the same computation. Constant, or invariable quantities have only one fixed value. .One quantity is said to vary directly as another, when the two quantities depend upon each other in such a manner, that if one be changed the other is changed in the same proportion.... | |
 | Isaac Todhunter - Algebra - 1858 - 530 pages
...definitions of ratio and proportion stated in a new phraseology, which is convenient for some purposes. 412. One quantity is said to vary directly as another when the two quantities depend upon each other, and in such a manner that if one be changed the other is changed in the same... | |
 | Horatio Nelson Robinson - Arithmetic - 1860 - 444 pages
...Riitio, and the quotieut of the first term divided by the second, an Im-er*e or Reciprocal Ratio, 416. One quantity is said to vary directly as another, when the two increase or decrease together in the same ratio ; and one quantity is said to vary inversely as another,... | |
 | Robert Fowler - 1861 - 426 pages
...Distance " the number of miles, and by " Time " the number of hours. 139. Def. 1. — One variable quantity is said to vary directly as another, when the two quantities depend upon each other in such a manner that the number of units in the one always bears the same ratio... | |
 | Isaac Todhunter - Algebra - 1863 - 302 pages
...definitions of ratio and proportion stated in a new phraseology which is convenient for some purposes. 370. One quantity is said to vary directly as another when the two quantities depend on each other, and in such a manner that if one be changed the other is changed in the same... | |
 | Horatio Nelson Robinson - Algebra - 1864 - 444 pages
...proportional between the two adjacent ones. Thus, if .a : Ь = I : с =: с : d = d : e, then a, b, c, d, and e are in continued proportion, and b is a mean...Ъ and d; and so on. 338. One quantity is said to vari/ directly as another when the two quantities, by reason of their mutual dependence, have always... | |
 | Joseph Ray - Algebra - 1852 - 422 pages
...various values in the same computation. Constant, or invariable quantities have only one fixed value. One quantity is said to vary directly as another, when the two quantities depend upon each other in such a manner, that if one be changed the other is changed in the same proportion.... | |
 | Isaac Todhunter - Algebra - 1866 - 580 pages
...definitions of ratio and proportion stated in a new phraseology, which is convenient for some purposes. 412. One quantity is said to vary directly as another when the two quantities depend upon each other, and in such a manner that if one be changed the other is changed in the same... | |
| |
... quantities are said to be in continued proportion, and any one of them is a mean proportional between the two adjacent ones. Thus, if a... 
