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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. "
The Youth's Assistant in Theoretick and Practical Arithmetic - Σελίδα 104
των Zadock Thompson - 1826 - 164 σελίδες
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Arithmetic, Practically Applied, for Advanced Pupils, and for Private ...

Horace Mann, Pliny Earle Chase - 1857 - 388 σελίδες
...several debts . Multiply each charge by the time which has elapsed from the date of the first billy and divide the sum of the products by the sum of the Mils. To find the equated time for the settlement of an account, in which there are both debits and...

The North American Practical School Arithmetic: Particularly Adapted to the ...

David Price - 1858 - 264 σελίδες
...average or mean time, where there are debus only. RULE. — Multiply each debt by the time it has to run, and divide the sum of the products by the sum of the debts ; the quotient will be the average time for the payment of the whole amount of the debts. PROOF....

Arithmetic, theoretical and practical. [With] Key

Chambers W. and R., ltd - 1859 - 344 σελίδες
...Multiply each quantity by its price ; then add the quantities in one sum and the products in another, and divide the sum of the products by the sum of the quantities : the quotient is the average. Example. — I have bought 2 yards of cloth, at 10s. each;...

The Progressive Practical Arithmetic: Containing the Theory of Numbers, in ...

Horatio Nelson Robinson - 1859 - 352 σελίδες
...of 6 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...

Introduction to The National Arithmetic, on the Inductive System: Combining ...

Benjamin Greenleaf - 1860 - 324 σελίδες
...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, but it is not perfectly correct...

The Progressive Higher Arithmetic, for Schools, Academies, and Mercantile ...

Horatio Nelson Robinson - 1860 - 444 σελίδες
...because 45 X 00 = 270 X 1. Hence the following 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...

The National Arithmetic, on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - 1860 - 456 σελίδες
...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...

Davies' University Arithmetic: Embracing the Answers, and a Full Analysis ...

Charles Davies - 1861 - 496 σελίδες
...to find the average time of payment : 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 average time. Examples. 1. A merchant ows $1200, of which $200 is...

Bryant and Stratton's Commercial Arithmetic: In Two Parts. Designed for the ...

Emerson Elbridge White - 1861 - 348 σελίδες
...quality of 1 oz. is 20. RULK. Multiply the value or quality of each article by'the number of articles, and divide the sum of the products by the sum of the articles. The quotient will be the average value or quality of the mixture. Ex.3. A grocer t mixed...

Vermont School Journal and Family Visitor, Τόμοι 3-4

1861 - 712 σελίδες
...starting point. The rule for Equation of Payments is, " multiply each payment by its own time of credit, and divide the sum of the products by the sum of the payments," — another case in point. I have put down some of the more prominent faults in the books,...




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