 | George Albert Wentworth, David Eugene Smith - Arithmetic - 1914 - 396 pages
...to 15 ft." It may, of course, be written simply 2 : 3 = 10 : 15, or ^ = i^. 125. Extremes and Means. The first and last terms of a proportion are called the extremes ; the second and third terms are called the means. In the proportion f = « I ' we see that 7 X 15 = 3 x... | |
 | John Alexander Luman - Arithmetic - 1914 - 366 pages
...Proportion is indicated by placing four points between the ratios — thus, 6 : 12 : : 24 : 48 798. The first and last terms of a proportion are called the extremes ; the second and third, the means. 799. In any proportion, the product of the extremes equals the product... | |
 | George Wentworth, David Eugene Smith - Arithmetic - 1915 - 550 pages
...to 15 ft." It may, of course, be written simply 2 : 3 = 10 : 15, or % = ||. 225. Extremes and Means. The first and last terms of a proportion are called the extremes ; the second and third terms are called the means. In the proportion ^ = ££, we see that 7 x 15 = 3 x 35.... | |
 | Robert Burdette Dale - Arithmetic - 1915 - 260 pages
...days : 12 days. Increasing the number of men from 4 to 6 decreases the number of days from 12 to 8. The first and last terms of a proportion are called the extremes. The second and third terms are called the means. (Extreme) : (Mean):: (Mean) : (Extreme) 2 : 3 :: 12 :... | |
 | George Wentworth, David Eugene Smith - Arithmetic - 1915 - 320 pages
...to 15 ft." It may, of course, be written simply 2 : 3 = 10 : 15, or J = 1$. 34. Extremes and Means. The first and last terms of a proportion are called the extremes; the second and third terms are called the means. In the proportion ^ = ^-|, we see that 7 x 15 = 3 x 35.... | |
 | George Wentworth, David Eugene Smith - Arithmetic - 1915 - 324 pages
...to 15 ft." It may, of course, be written simply 2 : 3 = 10 : 15, or J = 1£. 34. Extremes and Means. The first and last terms of a proportion are called the extremes ; the second and third terms are called the means. In the proportion | = ££, we see that 7 x 15 = 3 x 35.... | |
 | George Wentworth, David Eugene Smith, Joseph Clifton Brown - Mathematics - 1917 - 264 pages
...equal to the ratio of 10 ft. to 16 ft." It may, of course, be written simply 5:8 = 10:1 6, or -| = ^. The first and last terms of a proportion are called the extremes ; the second and third terms are called the means. These expressions are unnecessary, however, in the treatment... | |
 | Charles Ernest Chadsey, James Hamblin Smith - Arithmetic - 1917 - 326 pages
...proportion as 15 : 5 = 24 : 8. The four numbers in this proportion are called the terms of the proportion. The first and last terms of a proportion are called the extremes and the second and third terms are called the means. 15 and 8 are the extremes of the above proportion... | |
 | William Ledley Vosburgh, William Frederick Gentleman - Mathematics - 1919 - 328 pages
...common fractions. Exercises 35-60, pages 53 and 54, and Exercises 11-20, page 141, are proportions. The first and last terms of a proportion are called the extremes; the second and third terms are called the means. For example, in the proportion § = •}$, 2 and 25 are... | |
 | George Albert Wentworth, David Eugene Smith - Arithmetic - 1920 - 380 pages
...10ft. is to 15ft.'" It may, of course, be written simply 2 : 3 =10 : 15, or J = i|, Extremes and Means. The first and last terms of a proportion are called the extremes; the second and third, the means. In the proportion | = ^| we see that 7 x 15 = 3 x 35. Similarly, we see... | |
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The first and last terms of a proportion are called the extremes, and the two middle terms are called the means. 
