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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 Federal Arithmetic; Or, A Compendium of the Most Useful Rules of that ... - Σελίδα 111
των James Noyes - 1808 - 152 σελίδες
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The Private Instructor, Or Mathematics Simplified: Comprising Every Thing ...

Jason M. Mahan - 1839 - 312 σελίδες
...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 9 months, and...

Complete Schoolmaster's Assistant: Being a Plain Comprehensive System of ...

Nathan Daboll - 1839 - 220 σελίδες
...Payments is the method of finding the mean time to pay at once 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....

A New System of Arithmetic: In which is Explained and Applied to Practical ...

Calvin Tracy - 1840 - 326 σελίδες
...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 16 months....

Adams's New Arithmetic: Arithmetic, in which the Principles of Operating by ...

Daniel Adams - 1840 - 278 σελίδες
...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...

A New System of Arithmetic, on the Cancelling Plan: Embracing the Rules of ...

Charles Guilford Burnham - 1841 - 324 σελίδες
...months, 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 as follows...

Adam's New Arithmetic: Arithmetic, in which the Principles of Operating by ...

Daniel Adams - 1848 - 316 σελίδες
...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,...

A Practical Treatise on Arithmetic, [etc.].

George Leonard - 1841 - 354 σελίδες
...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...

Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - 1841 - 324 σελίδες
...1. RBCIPBOCATK, [L. rectpricui.] To exchange ; to interchange; to give anil return mutually. several products by the sum of the payments; the quotient will be the mean or equitable time for the payment of the whole. * 11. A owes B $200 to be paid in 6 months, $300...

The National Arithmetic ...: Combining the Analytic and Synthetic Methods ...

Benjamin Greenleaf - 1841 - 334 σελίδες
...same as $19 for j'5 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; then divide the sum of the products by the sum of the payments, and the quotient will be the true time...

A Practical Treatise on Arithmetic ...: Combining the Useful Properties of ...

George Leonard (jr.) - 1841 - 352 σελίδες
...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...




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