 | Zachariah Jess - Arithmetic - 1810 - 222 pages
...10=14; and 6 + 8=14; or 3, 6, 9, 12, 15; where 3+15=18; also 6+12=18; and 9+9=18. CASE 1. The first term, common difference, and number of terms given,...find the last term, and sum of all the terms ; RULE. First, Multiply the number of terms, less .', by the common difference, and to „that produit add... | |
 | Arithmetic - 1811 - 210 pages
...middle term ; as An the former of the foregoing series 6x2=2 + 10, and =t 4 + 8. CASE 1. The first term, common difference, and number of terms given...common difference, and ,to the product add the first teim, the sum is the last term. 2. Multiply the sum of the two extremes by the number of terms, and... | |
 | Zachariah Jess - Arithmetic - 1813 - 228 pages
...3+15=18 ; also ß+ 12^18; ana 9+9=18. CASE I*' The first term, common difference, and number of terra* given, to find the last term, and sum of all the terms ; RULE. First, Multiply the number of terms, less r, by tfee common différence, and to that product add the... | |
 | Jacob Willetts - Arithmetic - 1822 - 200 pages
...sum of all the terms ; Any three of which being given, the other two may be found, CASK 1 . The First term, common difference, and number of terms given to find the last term, and the sum of all the terms. RFLE. First, Multiply the number of terms, less 1, by the common .difference,... | |
 | Zachariah Jess - Arithmetic - 1824 - 228 pages
...difference, and number of term's given, to find the last term, a»d sum of all the terms; RULE. First, Multiply the number of terms, less 1, by the common difference, and to that product add the first term, the sum is the last term. Secondly, Multiply the sum of the two extremes... | |
 | Etienne Bézout - Mathematics - 1824 - 238 pages
...rules in the two following cases. CASE I. When the first term, common ratio, and number of terms are given, to find the last term, and sum of all the terms, the operation is as follows. Multiply the number of terms, less 1 , by the common difference ; to the... | |
 | Thomas Tucker Smiley - Arithmetic - 1825 - 224 pages
...Progression. By what rule do you work when the first term, common difference, and number of terms are given to find, the last term, and sum of all the terms ? By \vhat rule do you work when the first and last terms are given to find the common difference ?... | |
 | Zachariah Jess - Arithmetic - 1827 - 226 pages
...4+10=14; and 6+8 = 14; or, 3, 6, 9, 12, 15, where 3+ 10= 18; abo 6+ 12=18; and 9+ 9=18. CASE !.. The first term, common difference, and number of terms given,...find the last term, and sum of all the terms. RULE. First, Multiply the number of terms, less one, by the common difference, and to that product add the... | |
 | Montgomery Robert Bartlett - Education - 1828 - 426 pages
...first term, the common difference, and the number of terms are given, to find the last term, and the sum of all the terms;— RULE. 1. Multiply the number of terms, less by, 1, by the common difference, and, to the product, add the first term, the sum will be the last... | |
 | Martin Ruter - Arithmetic - 1828 - 180 pages
...together make the same amount. CASE I. The first term, common difference, and number of terms, being given, to find the last term and sum of all the terms. RULE. Multiply the common difference by one less than the number of terms, and to the product add the first... | |
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Multiply the number of terms, less 1, by the common difference, and to the product add the first term, the sum is the last term. 
