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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 Theoretic[!] and Practical Arithmetic ... - Page 82
by Zadock Thompson - 1832 - 168 pages

## The United States Arithmetic: Designed for Academies and Schools

William Vogdes - Arithmetic - 1847 - 256 pages
...given, to find the value of the mixture. PULE. Multiply each quantity of the mixture by its rate, then divide the sum of the products by the sum of the quantities, and the quotient will give the rate of the mixture required ? EXAMPLES. 1. If 19 bushels of rye, at...

## Rudimentary arithmetic

James Haddon - Arithmetic - 1849 - 144 pages
...payments, due at different times, should be paid at once. BULE. Multiply each payment by its time, and divide the sum of the products by the sum of the payments. PARTNERSHIP. Partnership or Fellowship is a method of finding the shares in the profit or...

## Quarterly Journal of the Chemical Society of London, Volume 64, Part 2

Chemical Society (Great Britain) - Chemistry - 1893 - 820 pages
...combination of the acid and base. Multiply A into the equivalent weight of the acid, B into that of the base, and divide the sum of the products by the sum of the equivalents : call the quotient D. Subtract G from I) and multiply by 100/D. The percentuge loss or...

## Rainey's Improved Abacus: An Explanatory Treatise on the Theory and Practice ...

Thomas Rainey - Arithmetic - 1849 - 320 pages
...Multiply the sum of each payment by its time, add the several payments: then, add their products ; and divide the sum of the products, by the sum of the payments. The several periods of time must be of the same denomination ; tither days, months, or y'ars,...

## American Common-school Arithmetic ...

Rufus Putnam - Arithmetic - 1849 - 404 pages
...4050, which is 3f. Ans. 3.тo. 18 d. RULE. 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 ; the quotient it the equated time. 2. A man owed \$20 to be paid in 3 months, \$50 in 4 months,...

## The University Arithmetic: Embracing the Science of Numbers, and Their ...

Charles Davies - Arithmetic - 1850 - 412 pages
...the payments.) Hence, to find the mean time, 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. EXAMPLES. 1. B owes A \$600: \$200 is to be paid in two...

## A New System of Arithmetic on an Improved Plan

Charles Guilford Burnham - 1850 - 352 pages
...---15=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...

## The Speedy Calculator: Being a System of Arithmetic

Benjamin Naylor - 1850 - 334 pages
...above illustration we infer the following RULE. Multiply each payment by the time at which it is due, and divide the sum of the products by the sum of the payments, and the quotient will be the equated time. 2. E owes G \$2400, of which \$480 are to be paid...