 | Charles Guilford Burnham - Arithmetic - 1837 - 266 pages
...Ibs.= 12J cts., the worth of 1 Ib. of the mixture. Hence the RULE. Multiply each quantity by its price, and divide the sum of the products by the sum of the quantities ; the quotient will be the rate of the compound required. EXAMPLES. 2. A grocer mixes sugar,... | |
 | Charles Davies - Arithmetic - 1838 - 292 pages
...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 is to be... | |
 | Augustus De Morgan - Annuities - 1838 - 380 pages
...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... | |
 | Jason M. Mahan - Arithmetic - 1839 - 312 pages
...will be the true equated time. RULE 2. Multiply each several payment by the time it has to run : then divide the sum of the products by the sum of the payments ; the quotient will be the equated time, nearly. Examples. IA owes B. S1800, whereof S200 is to. be paid at 6 months, 8400 at... | |
 | Frederick Emerson - Arithmetic - 1839 - 300 pages
...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... | |
 | Nathan Daboll - 1839 - 220 pages
...several debts, due at different times. RULE. Multiply each payment by the time at which it is due, then divide the sum of the products by the sum of the payments, and the quotient will be the answer. • . . EXAMPLES. 1. A owes B $380, to be paid $100 in 6 months,... | |
 | Daniel Adams - Arithmetic - 1840 - 278 pages
...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 what is gained... | |
 | Calvin Tracy - Arithmetic - 1840 - 316 pages
...following rule : RULE. — Multiply each payment by the time which must elapse 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 16 months.... | |
 | Daniel Adams - Arithmetic - 1848 - 316 pages
...6-j-days, Ans. Hence, To find the mean time of several payments, Multiply each sum by its time of payment, and divide the sum of the products by the sum of the payments. EXAMPLES FOR PRACTICE. 4. A western merchant owes in New York city $200, due in 5 months; $325'50,... | |
 | George Leonard - 1841 - 356 pages
...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. 
