Books Books The plate of a looking-glass is 18 inches by 12, and it is to be surrounded by a plain frame of uniform width/ having a surface equal to that of the glass. An Elementary Treatise on Algebra, Theoretical and Practical: With Attempts ... - Page 116
by John Radford Young - 1839 ## Geometrical Problems Deducible from the First Six Books of Euclid, Arranged ...

Miles Bland - Geometry - 1821 - 438 pages
...looking-glass is is inches by 12, and is to be framed with a frame of equal width, whose area is to be equal to that of the glass. Required the width of the frame. The area of the glass = 12 x 18 = 216. Let x = the width of the frame (in inches) ; then the area of... ## Algebraical Problems, producing simple and quadratic equations, with their ...

Miles BLAND - Algebra - 1824 - 406 pages
...looking-glass is 18 inches by 12, and is to be framed with a frame of equal width, whose area is to be equal to that of the glass. Required the width of the frame. The area of the glass = 12 x 18 = 216. Let т = the width of the frame (in inches); then the area of... ## An Introduction to Algebra Upon the Inductive Method of Instruction

Warren Colburn - Algebra - 1825 - 372 pages
...to be framed with a frame, all parts of which are of equal width, and the area of the frame is to be equal to that of the glass. Required the width of the frame. 16. A and B set out from two towns, which were distant 247 miles, and travelled the direct road till... ## An Introduction to Algebra Upon the Inductive Method of Instruction

Warren Colburn - Algebra - 1828 - 276 pages
...to be framed with a frame, all parts of which are of equal width, and the area of the frame is to be equal to that of the glass. Required the width of the frame. 16. A and B set out from two towns, which were distant 247 miles, and travelled the direct road till... ## Elements of Algebra

William Smyth - Algebra - 1833 - 288 pages
...looking glass is 18 inches by 12, and is to be framed with a frame of equal width, whose area is to be equal to that of the glass. Required the width of the frame. 6. A grazier bought as many sheep as cost him £60 ; oui of which he reserved 15, and sold the remainder... ## Elements of Algebra

William Smyth - Algebra - 1836 - 292 pages
...looking glass is 18 inches by 13, and is to be fianied with a frame of equal width, whose area is to be equal to that of the glass. Required the width of the frame. Ans. 3 inches. 6. A grazier bought as many sheep as cost him £69; out of which lie reserved 15, and sold the remainder... ## An Elementary Treatise on Algebra, Theoretical and Practical: With Attempts ...

John Radford Young - Algebra - 1838 - 358 pages
...Ans. Length 40 yards, breadth 24 yards. 21. The plate of a looking-glass is 18 inches by 12, audit is to be surrounded by a plain frame of uniform width,...glass. Required the width of the frame. Ans. 3 inches. 22. The difference between the hypotenuse and base of a rightangled triangle is 6, and the difference... ## An Introduction to Algebra upon the Inductive Method of Instruction

Warren Colburn - Algebra - 1844 - 280 pages
...to be framed with a frame, all parts of which are of equal width, and the area of the frame is to be equal to that of the glass. Required the width of the frame. 16. A and B set out from two towns, which were distant 247 miles, and travelled the direct road till... ## Elements of Algebra: Embracing ... the Theory and Application of Logarithms ...

Davis Wasgatt Clark - 1844 - 346 pages
...looking-glass is 18 inches by 12, and is to be framed with a frame of equal width, whose area is to be equal to that of the glass. Required the width of the frame. Jlns. 3 inches. 21. A square courtyard has a rectangular gravel-walk round it. The side of the court... 