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" 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 equated time, nearly. "
A New System of Arithmetic, on an Improved Plan ... - Σελίδα 217
των Charles Guilford Burnham - 1859
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A Practical Treatise on Arithmetic, [etc.].

George Leonard - 1841 - 356 σελίδες
...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 without...

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

Charles Guilford Burnham - 1841 - 324 σελίδες
...cts., the worth of 1 lb. of the mixture. Hence the RULE. . • Multiply each quantity by ils price, and divide the sum of the products by the sum of the quantities. The quotient will be the rate of the compound required. EXAMPLES. 2. A grocer mixes sugar,...

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

Benjamin Greenleaf - 1842 - 184 σελίδες
...days, as before. Hence 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 required. 2. John Smith owes a merchant, in Boston, $ 1000, $250 of which is to be paid in...

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

Nathan Daboll - 1843 - 254 σελίδες
...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. EXAMPLES. 1. A owes B $380, to be paid $100 in 6 months, $120 in 7 months, and $160 in 10 months...

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

Benjamin Greenleaf - 1843 - 340 σελίδες
...following RULE.* s Multiply each payment by the time, at which it is due ; then divide ihe sum of llie products by the 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,...

Arithmetic, designed for academies and schools, with answers

Charles DAVIES (LL.D.) - 1843 - 348 σελίδες
...for the payment of the whole ? OPERATION. We here multiply each sum 200x2= 400 by the time at which it becomes due, and divide the sum of the products by the sum of 200x4= 800 200x6=1200 600 )24|00 ~ the payments. Ans. 4 months. 3. A merchant owes $600, of...

A Practical Summary of the Law and Usage of Bills of Exchange and Promissory ...

Benjamin Franklin Foster - 1843 - 142 σελίδες
...business use the following general RULE. Multiply the amount of each debt by the time it has to run till it becomes due, and divide the sum of the products by the amount of the debt ; the quotient is the average or equated time of payment. Thus the equated time...

A Theoretical and Practical System of Arithmetic, etc

W. H. CRANK - 1843 - 340 σελίδες
...mean rate of the mixture. RULE. — Multiply each quantity by its value for a unit of the quantity, and divide the sum of the products by the sum of the quantities. (1) 10 galls, of brandy at 16s. 4d., were mixed with 36 at 8*., 45 at 6*., and 18 at 10*....

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

Benjamin Greenleaf - 1844 - 204 σελίδες
...days, as before. Hence 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 required. 2. John Smith owes a merchant, in Boston, $ 1000, $250 of which is to be paid in...

Arithmetic Designed for Academies and Schools: With Answers

Charles Davies - 1844 - 666 σελίδες
...^the sum of the payments.) Hence, we have the following RULE. Multiply each payment by the time before it becomes due, and divide the sum of the products by the sum of the payments : tlie quotient will lie the mean time. 2. B owes A $600 : $200 is to be paid in two months, $200 in...




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