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" The first cup weighed 6 oz. If the first cup be covered, it will weigh twice as much as the second, but if the second cup be covered, it will weigh 3 times as much as the first. What is the weight of the second cup and cover ? ANALYSIS. "
Stoddard's Complete Arithmetic: Being the New Practical Arithmetic of the ... - Page 409
by John Fair Stoddard - 1888 - 456 pages
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An Introduction to Algebra Upon the Inductive Method of Instruction

Warren Colburn - 1825 - 400 pages
...cup be covered it weighs twice as much as the other cup, but if the second be covered it weighs three times as much as the first. What is the weight of the cover and of the second cup ? Let x = weight of the cover. Then 12 + x = weight of first cup covered....
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An Introduction to Algebra Upon the Inductive Method of Instruction

Warren Colburn - 1829 - 284 pages
...be covered it weighs twice as much as the other cup, but if the se cond be covered it weighs three times as much as the first What is the weight of the cover, and of the second cup ? Let a; = weight of the cover. Then 12 -f- x = weight of the first cup...
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Exercises in Algebra: Being Systematically Arranged and Adapted to the ...

Francis Joseph Grund - 1833 - 224 pages
...with the cover twice as much as the other cup without the cover. The other cup weighs with the cover 3 times as much as the first. What is the weight of the cover ? And what is the weight of the 2d cup ? 1 17) A person possesses a wagon with a mechanical contrivance,...
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The North American Arithmetic: Part Third, for Advanced Scholars, Volume 3

Frederick Emerson - 1834 - 300 pages
...covered, it will weigh twice as much as the second; but if the second cup be covered, it will weigh three times as much as the first. What is the weight of the cover, and of the second cup ? 109. Gray of Baltimore remits to Degrand in Boston, for sale, a set...
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The North American Arithmetic: For Advanced Scholars. part third

Frederick Emerson - 1839 - 300 pages
...covered, it will weigh twice as much as the second; but if the second cup be covered, it will weigh three times as much as the first. "What is the weight of the cover, and of the second cup ? 109. Gray of Baltimore remits to Degrand in Boston, for sale, a set...
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Arithmetical Spyglass and Teacher's Assistant: Intended as a Key and ...

Charles Waterhouse - 1842 - 180 pages
...covered, it will weigh twice as much as the second ; but if the second cup be covered, it will weigh three times as much as the first. What is the weight of the cover and of the second cup 1 *First cup, oz. 12X3, second cup and cover, viz. 26oz. ; hence, both...
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An Introduction to Algebra upon the Inductive Method of Instruction

Warren Colburn - 1844 - 280 pages
...cup be covered it weighs twice as much as the other cup, but if the second be covered it weighs three times as much as the first. What is the weight of the cover, and of the second cup ?" \ s Let x = weight of the cover. Then 12 + x = weight of the first...
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Elementary and practical Arithmetic on the inductive system, by analysis and ...

Charles WATERHOUSE - 1844 - 228 pages
...covered, it will weigh twice as much as the second ; but if the second cup be covered, it will weigh three times as much as the first, what is the weight of the cover and of the second cup ? First cup, 12 oz.X3=36 oz., second cup and cover; hence, both cups and...
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The American Intellectual Arithmetic: Designed for the Use of Schools and ...

John Fair Stoddard - 1849 - 176 pages
...equals 900 ; how many sheep has each, providing J of B's number is twice ?- of A's number ? LESSON XIII. 3 times as much as the first. What is the weight of the second cup, and cover ? SOLUTION.—By the last condition of the question, 3 times the weight of the first cup, (13 ounces,)...
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Stoddard's Practical Arithmetic

John Fair Stoddard - 1852 - 320 pages
...first cup weighed 6 oz. If the first cup be covered, it will weigh twice as much as the second, but if the second cup be covered, it will weigh 3 times as much aa the first. What is the weight of the second cup and cover ? SOLUTION. — By the last condition...
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