 | 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... | |
 | 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... | |
 | George Leonard - Arithmetic - 1841 - 354 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... | |
 | George Leonard (jr.) - Arithmetic - 1841 - 350 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... | |
 | Charles Guilford Burnham - Arithmetic - 1841 - 324 pages
...75-rl5=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... | |
 | 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... | |
 | John Husband (math. master, Berwick.) - 1841 - 126 pages
...for the whole ? Ans. 7 months. EQUATION OF RATES. RULE.— Multiply each quantity by its rate, then divide the sum of the products by the sum of the quantities, and the quotient will be the rate of the compound. EXERCISES. 1. What is the average rate of 51 qr.... | |
 | 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;... | |
 | W. H. CRANK - Arithmetic - 1843 - 340 pages
...mean rate of the mixture. RULE. — Multiply each quantity by its value for a unit of the quantity, and divide the sum of the products by the sum of the quantities. (1) 10 galls, of brandy at 16s. 4d., were mixed with 36 at 8*., 45 at 6*., and 18 at 10*. Required... | |
 | Charles DAVIES (LL.D.) - Arithmetic - 1843 - 348 pages
...payments.) Hence, we have the following RULE. Multiply each payment by the time before it becomes due, and divide the sum of the products by the sum of the payments : the quotient will be the mean time. 2. B owes A $600 : $200 is to be paid in two months,... | |
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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. 
