 | Charles Hutton - Mathematics - 1812 - 620 pages
...the number of terms 4 ; required the common difference ? 19 3 19—3 16 Or, = — = 2. 9—1 8 •2. If the extremes be 10 and 70, and the number of terms 21 ; what is the common difference, and the sum of the series ? Ans. the com. diff. is 3, and the sum is 840. 3. A certain debt can be discharged... | |
 | Charles Hutton - Mathematics - 1816 - 610 pages
...difference i 19 3 19—3 16 -_— . Or, = — «= 2. 8; 16 9 — 1 8 Ans 2 2. If the extremes be 10 and fO, and the number of terms 21 ; 'what is the common difference, and the sum of ihc .scries ? Ans tho com. cliff is 3, and the sum is 840. 3. A certain debt can be discharged... | |
 | Charles Hutton - Mathematics - 1822 - 616 pages
...number of terms 9 ; required the common difference ? 19 3 19-3 16 Or, = — = 2. 8) 16 9-18 Ans. 2 2. If the extremes be 10 and 70, and the number of terms 21 ; what is the common difference, and the sum of the series ? Ans. th« com. diff. is 3, and the sum is 840. 3. A certain debt can be discharged... | |
 | Samuel Read Hall - Arithmetic - 1832 - 294 pages
...peck. Ans. .013J25peck. 39. Multiply 4 feet, 7 inches, by 9 feet 6 in. Ans. 43 feet, 6J inches. 30. If the extremes be 10 and 70, and the number of terms 21 ; what is the common difference, and the sum of the series ? Ans. com. diff. is 3, and the sum 840. 31. What is the cube root of 23887872?... | |
 | mrs. Henry Ayres - Arithmetic - 1843 - 470 pages
...less extreme from the greater, and divide the remainder by the number of terms, less 1. Examples. 1. If the extremes be 10 and 70, and the number of terms 21, what is the common difference ? 70 Greater extreme. 10 Less extreme. 2,0 ) 6,0 Common dif. 3 Answer. 2. A debt can be discharged... | |
 | mrs. Henry Ayres - 1846 - 400 pages
...fess extreme from the greater, and divide the remainder by the number of terms, less 1. Examples. 1. If the extremes be 10 and 70, and the number of terms 21, what is the common difference ? 70 Greater extreme. 10 Less extreme. 2,0 )6,0 Common dif. 3 Answer. 2. A debt can be discharged in... | |
 | Oliver Byrne - Engineering - 1851 - 310 pages
...19, and the number of terms 9 ; required the common difference ? 19 — ft 19-3 16 8)16 0r,-9=T=T=2_2 If the extremes be 10 and 70, and the number of terms 21 ; what is the common difference, and the sum of the series ? The com. diff. is 3, and the sum is 840. PROBLEM III. Griven one of the extremes,... | |
 | Oliver Byrne - Engineering - 1863 - 600 pages
...and the number of terms 9 ; required the common difference ? 19 — O 19~3 16 « 8)16 0r'-9^T=T=2_2 If the extremes be 10 and 70, and the number of terms 21 ; what is the common difference, and the sum of the series ? The com. diff. is 3, and the sum is 840. PROBLEM m. Given one of the extremes,... | |
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If the extremes be 10 and 70, and the number of terms 21 ; what is the common difference, and the sum of the series ? Ans. th 