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" If the errors are alike, divide the difference of the products by the difference of the errors, and the'quotienl will be the answer. "
The National Arithmetic ...: Combining the Analytic and Synthetic Methods ... - Seite 230
von Benjamin Greenleaf - 1841 - 314 Seiten
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The Tutor's Assistant Modernised: Or, A Regular System of Practical ...

Thomas Peacock - 1791 - 283 Seiten
...how to perform thofe queftions that require two fuppofitions to find the number fought. R "U LE. Take any two. convenient numbers, and proceed with each according to the conditions of the queftion. Then, find how much the refults are different from the refults in the queftion, and call...
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The Arithmetician's Assistant: Being a Complete System of Practical ...

R. Wiseman - 1798 - 112 Seiten
...'cannot be adapted to all the conditions of it, it may be .refolved by two fuppofitions. RULE I — Take any two convenient numbers, and . proceed with each ' according to the conditions of the queftion; and find the differences betwixt the refults and given numbers, which call errors. II. —...
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Mathematics, Band 1

Samuel Webber - 1808
...POSITION. Double Position teaches to resolve questions by makingtwo suppositions of false numbers. 1. Take any two convenient numbers, and proceed with each according to the conditions of the question. 2. Find how much the results are different from the result • in the question. 3. Multiply each of...
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A New and Complete System of Arithmetick: Composed for the Use of the ...

Nicolas Pike - 1808 - 480 Seiten
...increased or diminished by some given number, which is no known part of the number required. RULE.* 1. Take any two convenient numbers, and proceed with each according to the conditions of the question. 2. Place the result or errours against their positions or supposed Pos. Err. 30 _ -, 12 numbers, thus,...
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A System of Arithmetic: Reprinted from the Mathematical Text-book

Samuel Webber - 1812 - 248 Seiten
...by making two suppositions of false numbers. j • • '* • * '. • .' RWLE.* • - • . 1. Take any two convenient numbers, and proceed with each according to the conditions of the question. . . - < * The rule is founded on this' supposition, that the first error is to the second, as Jfie...
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Daboll's Schoolmaster's Assistant: Improved and Enlarged, Being a Plain ...

Nathan Daboll - 1815 - 240 Seiten
...POSITION, 1 BACHES to resolve questions by making two suppositions of false numbers.* RULE. 1. Take any two convenient numbers, and proceed with each according to the conditions of the question. 2. Find how much the results are different from the results in the question. 3. Multiply the first...
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Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain ...

Nathan Daboll - 1817 - 240 Seiten
...question. 3. Multiply the first position by the last error, and the last position by the first error. 4. If the errors are alike, divide the difference of the products by tha difference of the errors, and the quotient will be the answer. 5. If the errors are unlike, divide...
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Logarithmick Arithmetick: Containing a New and Correct Table of Logarithms ...

1818 - 251 Seiten
...DOUBLE POSITION teaches to resolve questions by making two suppositions of false numbers. RULE. 1. Take any two convenient numbers, and proceed with each according to the conditions of the question. 2. Find how much the results are different from the result in the question. 3. Multiply the first position...
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The Scholar's Guide to Arithmetic: Being a Collection of the Most Useful ...

Phinehas Merrill - 1819 - 107 Seiten
...Take any two convenient numbers,and proceed with each according to the condition of the question. 2. Find how much the results are different from the result in the question. 3. Multiply each of the errors by tho contrary supposition, and find the sum and difference of the...
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Daboll's Schoolmaster's Assistant, Improved and Enlarged: Eing a Plain ...

Nathan Daboll - 1823 - 240 Seiten
...DOUBLE POSITION, J. EAC'IES to resolve questions by makmg two suppositions of false numbers.* 1. Take any two convenient numbers, and proceed with each according to the conditions of the question. 2. Find how much the results are different from the results in the question. 3. Multiply the firsf...
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