 | Almon Ticknor - 1846 - 276 σελίδες
...term, the last term, and the number of terms, being given, to find the sum of all the terms. RULE II, Multiply the sum of the extremes by the number of terms, and half the product will be the answer. 3. A lady purchased 19 yards of riband, for which she gave Ic. for the first yard, 3c. for... | |
 | James Bryce - 1846 - 352 σελίδες
...bfk dhm ' hence, aei : bfk : : cgi : dhm. 177. PROB. I. To find the sum of an equidifferent series. Multiply the sum of the extremes by the number of terms, and take half the product. Let a be the first term, d the common difference, and s the sum of the series... | |
 | William Vogdes - 1847 - 324 σελίδες
...§ 164. CASE 1. The first term, the last tenu, and the number of terms, being given, to find the sum of all the terms. RULE. Multiply the sum of the extremes...number of terms, and half the product will be the answer. EXAMPLES. 1. The first term of an arithmetical progression is 2, the last term 53, and the... | |
 | Daniel Adams - 1848 - 330 σελίδες
...extremes of the series ; hence, tcken the extremes and the number of terms are given to find the sum of the terms, % RULE. Multiply the sum of the extremes...the product will be the sum of the terms. EXAMPLES FOR PRACTICE. 2. If the extremes be 5 and 605, and the number of terms 151, what is the sum of the... | |
 | Daniel Adams - 1848 - 322 σελίδες
...extremes of the series ; hence, when the extremes and the number of terms are given to find the sum of the terms, RULE. Multiply the sum of the extremes...the product will be the sum of the terms. EXAMPLES FOR PRACTICE. 2. If the extremes be 5 and 605, and the number of terms 151, what is the sum of the... | |
 | Daniel Adams - 1848 - 330 σελίδες
...of the series ; hence, when the extremes and [he number of terms are, given to fold the sum oj tl/e terms, RULE. Multiply the sum of the extremes by the...the product will be the sum of the terms. EXAMPLES FOR PRACTICE. 2. If the extremes be 5 and 605, and the number of terms 151, what is the sum of the... | |
 | Daniel Adams - 1848 - 324 σελίδες
...series ; hence, when the extremes and ihe number of terms are given to fold the sum of the terinr, RULE. Multiply the sum of the extremes by the number...the product will be the sum of the terms. EXAMPLES FOR PRACTICE. 2. If the extremes be 5 and 605, and the number of terms 151, what is the sum of the... | |
 | Daniel Adams - 1848 - 354 σελίδες
...extremes of the series ; hence, icken the extremes and the number of terms are given to find the sum oj the terms, RULE. Multiply the sum of the extremes by the number of terms, 'uid half the product will be the sum of the terms. EXAMPLES FOR PRACTICE. 2. If the extremes be 5... | |
 | Daniel Adams - 1848 - 320 σελίδες
...terms are given to find the sum oj the tarns, . RULE. Multiply the sum of the extremes by the numher of terms, and half the product will be the sum of the terms. EXAMPLES FOR PRACTICE. 2. If tho extremes be 5 and 605, and the number of terms 151, what is the sum of the... | |
 | Daniel Adams - 1848 - 342 σελίδες
...the number of terms are given to find the sum of the terms, RULE. Multiply the sum of the'extremes by the number of terms, and half the product will be the sura of the terms. • EXAMPLES FOR PRACTICE. 2. If the extremes be 5 and 605, and the number of terms... | |
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... terms, RULE. Multiply the sum of the extremes by the number of terms, and half the product will be the sum of the terms. EXAMPLES FOR PRACTICE. 2. If the extremes be 5 and 605, and the number of terms 151, what is the sum of the series? 
