 | Daniel Adams - 1833 - 268 ページ
...find the mean time for several payments,' — RULE : — Multiply each sum by its time of payment, and divide the sum of the products by the sum of the payments, and the quotient will be the answer. Note. This rule is founded on the supposition, that... | |
 | Francis Walkingame - 1833 - 204 ページ
...prices being given, to find the mean price of the mixture. RULE. Multiply each quantity by its price, and divide the sum of the products by the sum of the quantities.* (1) A grocer mixed 4 cwl. of sugar, at 56.?. per cwt. with 7 cwt. at 43i. per cwl. and... | |
 | Frederick Emerson - 1834 - 300 ページ
...sum of them by the sum of the debts. RULE. Multiply each debt by the time, in which it is payable, and divide the sum of the products by the sum of the debts: the quotient will be the equated time. 1. If I owe you 50 dollars payable in 4 months, 75 dollars... | |
 | Charles Guilford Burnham - 1837 - 266 ページ
...months, 75-r-15=5 months, the answer. Hence the RULE. Multiply each payment by the time when it becomes due, and divide the sum of the products by the sum of the payments, and the quotient will be the time required. 2. A merchant has owing him $420, to be paid... | |
 | Charles Davies - 1838 - 292 ページ
...payment of the whole ? OPERATION. We here multiply each sum 200 x 2 = 400 by the time at which it becomes due, and divide the sum of the products by the sum of the payments. 200x4= 800 200x6 = 1200 600 )24|00 Ans. 4 months. . 3. A merchant owes $600, of which $100... | |
 | Augustus De Morgan - 1838 - 380 ページ
...of 4 and 1, and the method of finding an average is this : multiply every observation by its weight and divide the sum of the products by the sum of the weights. Such a method was adopted before the theory of probabilities was applied to the subject, as... | |
 | Frederick Emerson - 1839 - 300 ページ
...sum oi them by the sum of the debts. RULE. Multiply each debt by the time, in which it is payable, and divide the sum of the products by the sum of the debts: the quotient will be the equated time. 1. If I owe you 50 dollars payable in 4 months, 75 dollars... | |
 | Calvin Tracy - 1840 - 326 ページ
...the following rule : RULE. — Multiply each payment by the time which must elapst before it becomes due, and divide the sum of the products by the sum of the payments. 2. A. owes me $50, payable in 4 months ; $100, payable in 10 months ; and $150, payable in... | |
 | Daniel Adams - 1840 - 278 ページ
...find the mean lime for several payments, — RULE • — Multiply each sum by its time of payment, and divide the sum of the products by the sum of the payments, and the quotient will be the answer. Note. This rule is founded on the supposition, that... | |
 | George Leonard - 1841 - 356 ページ
...loss to either debtor or creditor, merchants usually Multiply each debt by the time to elapse before it is due, and divide the sum of the products by the sum of the debts. Though this method is inaccurate it is easy, and experiment shows it may be employed without... | |
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Multiply each payment by its term of credit, and divide the sum of the products by the sum of the payments ; the quotient will be the average term of credit. 
