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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 New and Complete System of Arithmetick: Composed for the Use of the ... - Σελίδα 281
των Nicolas Pike - 1832 - 528 σελίδες
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The National Arithmetic, on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - 1849 - 388 σελίδες
...for T^ 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...the sum of the products by the sum of the payments r and the quotient will be the true time required. 2. A owes B $ 300, of which $ 50 is to be paid in...

Introduction to The National Arithmetic: On the Inductive System Combining ...

Benjamin Greenleaf - 1849 - 336 σελίδες
...for the payment of the whole. Hence the following RULE. — Multiply each payment by the time before it is due, then divide the sum of the products by...sum of the payments, and the quotient will be the true time required. NOTE 1. — This is the rule usuaHy adopted by merchants, but it is not perfectly...

Daboll's Complete Schoolmaster's Assistant: Being a Plain Comprehensive ...

Nathan Daboll, David Austin Daboll - 1849 - 260 σελίδες
...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 swm of the payments, and the quotient will* be the answ«r. EXAMPLES.. % . 1. A owes B $380, fo be...

Rudimentary arithmetic

James Haddon - 1849 - 144 σελίδες
...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 loss of several...

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

Thomas Rainey - 1849 - 334 σελίδες
...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 ; either days, months, or y tars, separately...

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

Benjamin Greenleaf - 1850 - 368 σελίδες
...for -^ 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;...sum of the payments, and the quotient will be the true time required. • 2. A owes B $ 300, of which $ 50 is to be paid in 2 months, $100 in 5 months,...

The Speedy Calculator: Being a System of Arithmetic

Benjamin Naylor - 1850 - 334 σελίδες
...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 at 5 months, $960 at 8 months, and the rest at 12 months...

A New System of Arithmetic on an Improved Plan

Charles Guilford Burnham - 1850 - 350 σελίδες
...---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 as follows : $100 in 8 months, $100 in...

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

Charles Davies - 1850 - 412 σελίδες
...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 months,...

Introduction to the National Arithmetic ...

Benjamin Greenleaf - 1851 - 332 σελίδες
...for the payment of the whole. Hence the following RULE. — Multiply each payment by the time before it is due, then divide the sum of the products by...sum of the payments, and the quotient will be the true time required. NOTE 1. — This is the rule usually adopted by merchants, but it is not perfectly...




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