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" У . 18 2. Given that the area of a triangle varies jointly as its base and altitude, what will be the base of a triangle whose altitude is 12, equivalent to the sum of two triangles whose bases are 10 and 6, and altitudes 3 and 9, respectively... "
Elementary Algebra with a Table of Logarithms - Σελίδα 303
των Julius Lederer Neufeld - 1920 - 383 σελίδες
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...obtain 9 = -, or m = 72. 8 79 Whence, x = — • У 72 Hence, if y = 18, we have x— - - = 4, Ans. 2. Given that the area of a triangle varies jointly as its base and altitude, what will be the base of я triangle whose altitude is 12, equivalent to the .sum of two triangles whose bases are 10 and 6,...

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...8, we obtain 9 = -, or m = 72. 72 Whence, x = — У 72 Hence, if y =18, we have x = — = 4. 18 2. Given that the area of a triangle varies jointly as...are 10 and 6, and altitudes 3 and 9, respectively ? Let B, H, and A denote the base, altitude, and area, respectively, of any triangle, and B' the base...

Essentials of Algebra for Secondary Schools

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...and у = 8, we obtain 9 =— , or m = 72. 8 7O 79 Then, x=~; and if y = 18, х=±± = 4, Ans. У ' 2. Given that the area of a triangle varies jointly as...are 10 and 6, and altitudes 3 and 9, respectively ? Since A varies jointly as В and H, we have A = mBH (§ 330). Then the area of the first triangle...

Essentials of Algebra for Secondary Schools

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...obtain 9 = — , or т = 72. 8 72 72 Then, x = — ; and if у = 18, ж = — = 4, Ans. У ' 18 2. Given that the area of a triangle varies jointly as...are 10 and 6, and altitudes 3 and 9, respectively ? Since A varies jointly as В and H, we have A = mBH (§ 330). Then the area of the first triangle...

Essentials of Algebra

Webster Wells - 1897 - 358 σελίδες
...8, we obtain 9 = — , or m = 72. 8 79 79 Then, x = — ; and if y= 18, x= — = 4, Ans. У . 18 2. Given that the area of a triangle varies jointly as...are 10 and 6, and altitudes 3 and 9, respectively ? Since A varies jointly as B and II, we have A = mBH (§ 330) . Then the area of the first triangle...

Essentials of Algebra for Secondary Schools

Webster Wells - 1897 - 411 σελίδες
...8, we obtain 9 = — , or m = 72. 8 72 79 Then, x = — ; and if y = 18, x = — = 4, Ans. У 18 2. Given that the area of a triangle varies jointly as...and altitude, what will be the base of a triangle whoso altitude is 12, equivalent to the sum of two triangles whose bases are 10 and 6, and altitudes...

Academic Algebra

William James Milne - 1901 - 444 σελίδες
...the time of falling. If a stone falls 64.32 feet in 2 seconds, how far will it fall in 5 seconds ? 7. The area of a triangle varies jointly as its base and altitude. The area of a triangle whose base is 12 inches and altitude 6 inches is 36 square inches. "What is...

Advanced Algebra for Colleges and Schools

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...the time of falling. If a stone falls 64.32 feet in 2 seconds, how far will it fall in 5 seconds ? 7. The area of a triangle varies jointly as its base and altitude. The area of a triangle whose base is 12 inches and altitude 6 inches is 36 square inches. What is the...

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...Putting x = 9 and у = 8, 9 = ^, or m = 72. 8 Then, x = — ; and, if y = 18, z = £| = 4. y IS 2. Given that the area of a triangle varies jointly as...are 10 and 6, and altitudes 3 and 9, respectively? Let Б, Н, and A denote the base, altitude, and area, respectively, of any triangle, and B' the base...

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Edward Rutledge Robbins, Frederick Howland Somerville - 1904 - 173 σελίδες
...z. 21. If the square of x varies as the cube of y, and x = 3 when у = 2, find у when x = 24. 22. The area of a triangle varies jointly as its base and altitude. Find the altitude of a triangle whose base is 23, equivalent to the sum of two triangles whose bases...




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