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" 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 true time required. "
A System of Arithmetic: Reprinted from the Mathematical Text-book - Page 199
by Samuel Webber - 1812 - 248 pages
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The National Arithmetic, on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - Arithmetic - 1857 - 310 pages
...for T'7 of 152 months, which is 8 months, as before. Hence the propriety of the following RULE.* — Multiply each payment by the time at which it is due...of the products by the sum of the payments, and the guetient will be the true time required. 2. A owes B $ 300, of which 8 50 is to be paid in 2 months,...
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Burnham's Arithmetic, Revised: A New System of Arithmetic, on an Improved ...

Charles Guilford Burnham - Arithmetic - 1857 - 328 pages
...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 as follows : $100 in 8 months, $100 in 2 months, and $220...
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A New System of Arithmetic, on an Improved Plan, Embracing the Rules of ...

Charles Guilford Burnham - 1857 - 342 pages
...= 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 as follows : $100 in 8 months, $100 in 2 months, and $220...
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A Treatise on Arithmetic, Combining Analysis and Synthesis: Adapted to the ...

James Stewart Eaton - Arithmetic - 1857 - 376 pages
...RULE. — Multiply each debt by the number expressing the time to elapse before it becomes due, and then divide the sum of the products by the sum of the debts. Ex. 2. What is the equated time for paying the following debts, viz. $400, due in 6m. ; $500,...
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Practical Arithmetic, by Induction and Analysis

Joseph Ray - Arithmetic - 1857 - 348 pages
...COMMON RULE FOR EQUATION OP PAYMENTS. Multiply each payment by the time to elapse till it becomes due; divide the sum of the products by the sum of the payments ; the quotient will be the equated time. When one of the payments is due on the day from which the...
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Introduction to The National Arithmetic: On the Inductive System : Combining ...

Benjamin Greenleaf - Arithmetic - 1857 - 336 pages
...payment of the whole. Hence the following RULE. — Multiply each payment by its own time of credit, and divide the sum of the products by the sum of the payments. NOTE 1. — This is the rule usually adopted by merchants, hut it is not perfectly correct ; for if...
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Arithmetic and Algebra in Their Principles and Application ...

Barnard Smith - 1857 - 740 pages
...equated time. RULE. " Multiply each debt into the time which will elapse before it becomes due, and then divide the sum of the products by the sum of the debts ; the quotient will be the equated time required." Ex. 1. A owes B £100, whereof £40 is to...
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Arithmetic, theoretical and practical. [With] Key

Chambers W. and R., ltd - 1859 - 344 pages
...or quality ; add all the products together into one sum, and all the quantities into another sum ; then divide the sum of the products by the sum of the quantities — and the quotient will be the required rate or quality of the composition. Example. —...
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The Progressive Practical Arithmetic: Containing the Theory of Numbers, in ...

Horatio Nelson Robinson - Arithmetic - 1859 - 362 pages
...months on $30, because 30 X 6 = 180 X 1. RULE. I. 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. II. Add the average term of credit to the date at...
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The National Arithmetic, on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - Arithmetic - 1860 - 456 pages
...days, nearly, from May 1, or on June 13. RULE. — Multiply each payment by its own time of credit, and divide the sum of the products by the sum of the payments. NOTE 1. — When the date of the average time of payment is required, as in Example 2, Jind the time...
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