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" Take the difference between each price, and the mean rale as before; then say, as the difference of that simple, whose quantity is given, is to the rest of the differences severally; so is the quantity given, to the several quantities required. ExAMPLES. "
The Tutor's Assistant Modernised: Or, A Regular System of Practical ... - Σελίδα 170
των Thomas Peacock - 1791 - 283 σελίδες
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A Complete Treatise on Arithmetic, Rational and Practical: Wherein the ...

Paul Deighan - 1804 - 504 σελίδες
...them, an! the :nean ra*^, to find the lev; rat quantities of the reft in proportion to th.t given. Rule. Take the difference between each price and the mean rate as befnre in the laft rule ; thi.n fay, as the difference of that lira,!1!- whof- quantity :s given, >s...

A Course of Mathematics: For the Use of Academies as Well as Private Tuition

Charles Hutton - 1812 - 620 σελίδες
...the Kule, 40 : 10' : : 12 -. 31b of copper 7 .. 40 : 10 : : 28 : 71b of gold J the an3wer RULE H0LE III*. WHEN one of the ingredients is limited to a certain quantity ; Take the difference between each price, and the mean rate as before ; then say, As the difference...

Elements of Arithmetic

Etienne Bézout - 1824 - 238 σελίδες
...together to form a composition of 40 ounces, 20 carats fine? Ans. 5oz. of 15, 17, and 18, and 25oz. of 22. CASE III. When one of the ingredients is limited to a certain quantity,./ww/ ihe difference between each price and the mean rate as before; then, as the difference...

Practical and Mental Arithmetic on a New Plan: In which Mental Arithmetic is ...

Roswell Chamberlain Smith - 1827 - 216 σελίδες
...form a composition of 40 ounces of 20 carats fine ? A. 5 oz. of 15, of 17, of 18, and 25 oz. of 22. CASE III. — When one of the ingredients is limited to a certain quantity. What is the RULE? A. Take the difference between each price and the mean rale as before : then, As...

Conkling's Arithmetic: The Young Arithmetician's Guide to a Knowledge of ...

Thomas Conkling (W.) - 1831 - 302 σελίδες
...together; to get the fourth answer, link as in the first; and then, the 16 and 8, and the 12 and 4. CASE III. When one of the ingredients is limited to a certain quantity; to find the several quantities of the rest, in proportion to the quantity given. RULE. 1. Take the...

The North American Arithmetic: Part Third, for Advanced Scholars, Τόμος 3

Frederick Emerson - 1834 - 300 σελίδες
...that the mass may be 9 ounces fine: 12ozs. fine being pure. How much of each must he take ? CASE II. When one of the ingredients is limited to a certain quantity. RULE. Find the quantity of each ingredient, as in Case 1st. in the same manner, as though no such limitation...

A Practical and Theoretical System of Arithmetic...: Also, a Treatise on ...

George Willson - 1836 - 202 σελίδες
...and yet be correct. The rule is of so little practical use, that it is needless to multiply examples. CASE. III. When one of the ingredients is limited to a certain quantity : RULE. — Find the quantity of the several ingredients, as in the last case. Then divide the whole of the...

A Practical and Theoretical System of Arithmetic: Containing a New System of ...

George Willson - 1838 - 194 σελίδες
...and yet be correct. The rule is of so little practical use, that it is needless to multiply examples. CASE. III. When one of the ingredients is limited to a certain quantity : RULE. — Find the quantity of the several ingredients, as in the last case. Then divide the whole of the...

The North American Arithmetic: For Advanced Scholars. part third

Frederick Emerson - 1839 - 300 σελίδες
...that the mass may be 9 ounces fine: 12ozs. fine being pure. How much of each must he take ? CASE II. When one of the ingredients is limited to a certain quantity. RULE. Find the quantity of each ingredient, as in Case 1st. in the same manner, as though no such limitation...

Call's Decimal Arithmetic: On a New and Improved Plan Throughout, Comprising ...

Osman Call - 1842 - 200 σελίδες
...bushel? Ans. 12 at 2s. 6d., 12 at 3 s. 8d., 18 at 4s., and IS at 4s. 8 d. TO FIND THE SEVERAL QUANTITIES WHEN ONE OF THE INGREDIENTS IS LIMITED TO A CERTAIN QUANTITY. RULE. — Find the differences between the medium rate and the price of each ingredient, according to the...




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