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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.
The University Arithmetic: Embracing the Science of Numbers, and Their ... - Page 270
by Charles Davies - 1850 - 408 pages

## Mathematics: Compiled from the Best Authors and Intended to be the ..., Volume 1

Mathematics - 1801 - 446 pages
...shall be sustained by either party. RULE.* Multiply each payment by die 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 time required. EXAMPLES. * This rule is founded upon a supposition, that...

## The Scholar's Arithmetic; Or, Federal Accountant ...: The Whole in a Form ...

Daniel Adams - Arithmetic - 1807 - 248 pages
...neither party shall sustain loss. 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 quAtĄM&TWA,4 equated time. - • • 204 EQUATION or PAYMENTS. SICT. III. 12. EXAMPLES. IA...

## The American Tutor's Guide: Being a Compendium of Arithmetic. In Six Parts ...

James Thompson - Arithmetic - 1808 - 176 pages
...the whole debt to do wflich the following is the common RULE — Multiply each payment by its time, and divide the sum of the products by the sum of the. payments ; the quoticut will be the equated tint«. EXAMPLES. 1. A. owes B. g600 to pay at 40 days, g200 at 60 days,...

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

Daniel Adams - Arithmetic - 1810 - 190 pages
...find the mean time for several payments, — RUt.E : — 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 rale is founded on the supposition, that what is gained...

## A System of Practical Arithmetic: Applicable to the Present State of Trade ...

Jeremiah Joyce - Arithmetic - 1812 - 274 pages
...composed of several quantities of different values. RULE. Multiply each quantity ly its respective value, and divide the sum of the products by the sum of the quantities. •Ex. 1. A tea-dealer mixes 31 cwt. of tea, at '9s, per Ib., with 2 cwt. at Is., and 41...

## A Complete System of Theoretical and Mercantile Arithmetic: Comprehending a ...

George G. Carey - Arithmetic - 1818 - 602 pages
...disadvantage, either to debtor or creditor. RULE. Multiply each sum by the time it has to run, before it be due, and divide the sum of the products by the sum of the debU. The quotient is the equated time of payment*. EXAMPLE. A merchant owes £89., due this day, 1st...

## Pantologia. A new (cabinet) cyclopędia, by J.M. Good, O. Gregory ..., Volume 4

John Mason Good - 1819 - 822 pages
...by either party. '1 he rule commonly given is, lo multiply each payment by the time at which it is due; and divide the sum of the products by the sum of the payments, for the time required. But this rule is not accurate, as was first »liown, we believe, by Mr. Malcolm,...

## The Complete Practical Arithmetician: Containing Several New and Useful ...

Thomas Keith - Arithmetic - 1822 - 354 pages
...Multiply the first supposition by the second error, and the second supposition by the first error, and divide the sum of the products by the sum of the errors, if they are differently marked ; or the difference of the products by the difference of the...