 | William Freeland - Algebra - 1895 - 328 pages
...generally represented by the last letters of the alphabet, as x, y, z, etc. 81. Known Quantities are represented by the first letters of the alphabet, as a, b, c, d, etc. Thus in the equation abx + cdx = 5 e, x represents the unknown quantity, and a, b, c, d, and e... | |
 | Emerson Elbridge White - Algebra - 1896 - 418 pages
...numbers ; and letters, general or algebraic symbols. 12. Known numbers, when expressed by letters, are usually represented by the first letters of the alphabet; as a, b, c, etc. 13. Unknown numbers, that is, numbers whose values are not given or determined, are usually represented... | |
 | Webster Wells - Algebra - 1904 - 384 pages
...employed to represent numbers are the figures of Arithmetic and the letters of the Alphabet. Known Numbers are usually represented by the first letters of the alphabet, as a, b, c. Unknown Numbers, or those whose values are to be determined, are usually represented by the last letters... | |
 | Webster Wells - Algebra - 1897 - 422 pages
...employed to represent numbers are the figures of Arithmetic and the letters of the Alphabet. Known Numbers are usually represented by the first letters of the alphabet, as a, b, c. Unknown Numbers, or those whose values are to • be determined, are usually represented by the last... | |
 | Frank H. Hall - Education - 1898 - 296 pages
...14. In any number of thousandths there are — — decimal places. 15. In any number of millionths there are -- decimal places. Algebra— Notation ....alphabet; as, a, b, c, d. ILLUSTRATIONS. (a) To find tlie perimeter of a square when its side is given. Let a = one side.* Then 4<z = the perimeter. Hence... | |
 | Frank H. Hall - Arithmetic - 1898 - 326 pages
...are decimal places. 16. In any number of billionths there are decimal Algebra—Notation. 17. Betters are used to represent numbers; thus, the letter a,...represented by the first letters of the alphabet; as, «, b, c, d. ILLUSTRATIONS. (a) To find tlie perimeter of a square when its side is given. Let a =... | |
 | Arthur Schultze - Algebra - 1905 - 468 pages
...which will appear laterj numbers are frequently denoted by letters ; as, a, m, x. 2. Known numbers are usually represented by the first letters of the alphabet ; as, a, b, c. Unknown numbers are usually represented by the last letters of the alphabet ; as, x, у, z. 3. The... | |
 | Arthur Schultze - Algebra - 1906 - 618 pages
...which will appear later, numbers are frequently denoted by letters ; as, a, m, x. 2. known numbers are usually represented by the first letters of the alphabet ; as, a, b, c. Unknown numbers are usually represented by the last letters of the alphabet ; as, x, y, s. 3. The signs... | |
 | Arthur Schultze - Algebra - 1906 - 584 pages
...which will appear later, numbers are frequently denoted by letters ; as, a, m, x. 2. Known numbers are usually represented by the first letters of the alphabet ; as, a, b, c. Unknown numbers are usually represented by the last letters of the alphabet ; as, x, y, z. 3. The signs... | |
 | Frank H. Hall - Arithmetic - 1907 - 364 pages
...In algebra, letters as well as figures are used to represent numbers. Known numbers, or those which may be known without solving a problem, when not expressed...the first letters of the alphabet, as, a, b, c, d. 1. Find the perimeter of an oblong when its length and breadth are given. Let a = the length * Let... | |
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Quantities, or those whose values are given, when not expressed by figures, are usually represented by the first letters of the alphabet, as a, b, c. 
