 | Daniel Adams - 1810 - 190 σελίδες
...and the number of term» are given, taflnd the turn of all the term«,—Multiply one half the ваш of the extremes by the number of terms, and the product will be the answer. X lOO—lffíSOcl». —glS24», whoWcoft. ' 10. If the extremes be 5 and GU3, and the number... | |
 | B. M. Tyler - 1827 - 308 σελίδες
...series. RULE. Multiply the sum of the extremes by the number of terms, and divide the product by 2 ; or multiply half the sum of the extremes by the number of terms. 11. If the first term of an arithmetical series be 2, the last term 122, and the number of terms 29,... | |
 | Daniel Adams - 1828 - 286 σελίδες
...when the extremes and the number of terms are given, to find the sum of all the terms,—Multiply £ the sum of the extremes by the number of terms, and the product will be the answer. 10. If the extremes be 5 and 605, and the number of terms 151, what is the sum of the series... | |
 | Zadock Thompson - 1828 - 238 σελίδες
...first and last term, and the number oftermt given to fnd the turn of the series. , RULE.—Multiply half the sum of the extremes by the number of terms, and tbe product will be the sum of the series. > 390,381. GEOMETRICAL PROGRESSION. lilt S3 ©comrtrical... | |
 | 1829 - 196 σελίδες
...the extremes and number of terms are given, to find the sum of all the terms, 272. RULE. Multiply ^ the sum of the extremes by the number of terms, and the product will be the answer. 11. If the extremes be 7 and 315, and the number of terms 78; what if the sum of the series... | |
 | Roswell Chamberlain Smith - 1829 - 284 σελίδες
...the extremes, and the number of terms are given, to find the sum of all the terms ; — Multiply A the sum of the extremes by the number of terms^ and the product will be the answer, 10. If the extremes be 3 and 073, and the number of terms 40, what is the •urn of all the... | |
 | Daniel Adams - 1830 - 294 σελίδες
...when the extremes and the number of terms are given, to find the sum of all the terms,—Multiply £ th'e sum of the extremes by the number of terms, and the product will be the answer. One half of 4 cts. -f- 301 cts. zr 152^ cts. = average } price ; and the price, 152^ cts. X... | |
 | Daniel Adams - 1830 - 268 σελίδες
...when the extremes and the number of terms are i/iven, to find the sum of all the terms,—Multiply £ the sum of the extremes by the number of terms, and the product will bt the answer. 10. If the extremes be 5 and 605, and the number of terms 151, what is the sum of the... | |
 | Daniel Adams - 1831 - 276 σελίδες
...when the extremes and the number of terms are given, to find the sum of all the terms,—Multiply £ the sum of the extremes by the number of terms, and the product will be the answer. 10. If the extremes be 5 and 605, and the number of terms 151, what' is the sum of the series... | |
 | Roswell Chamberlain Smith - 1831 - 286 σελίδες
...the extremes, and the number of terms are given, to find the sum of all the terms ;— Multiply £ the sum of the extremes by the number of terms, and the product will be the answer. 10. If the extremes be 3 and 373, and the number of terms 40, what is the sum of all the terms... | |
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To find the sum of all the terms, when the extremes and the number of terms are given. Multiply half the sum of the extremes by the number of terms, and the product will be the sum of the given series. OBS. The reason of 
