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One quantity is said to vary directly as a second and inversely as a third, when it varies jointly as the second and the reciprocal of the third. Thus...
Elementary Algebra with a Table of Logarithms - Σελίδα 298
των Julius Lederer Neufeld - 1920 - 383 σελίδες
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## The Teacher's Assistant in the "Course of Mathematics Adapted to the Method ...

1836 - 472 σελίδες
...varies as two others jointly, when the one is increased or diminished as the product of the other two. One quantity varies directly as a second, and inversely as a third, when the first is always proportioned to the second divided by the third. If one quantity varies as another,...

## Algebra

Isaac Todhunter - 1858 - 496 σελίδες
...=mBC, where m is constant, A is said to vary jointly as В and C. 418. One quantity is said to vary directly as a second and inversely as a third, when...jointly as the second and the reciprocal of the third. Or if A = ~YT , where m is constant, A is said to vary directly о as В and inversely as C. 419. If...

## Algebra for beginners

Isaac Todhunter - 1863 - 16 σελίδες
...changed in the same proportion. 376. One quantity is said to vary directly as a second and inveriely as a. third, when it varies jointly as the second and the reciprocal of the third. Or if A = —jr , where m is constant, A is said to vary directly as B and inversely as C. 377. //"Ax...

## New Higher Algebra: An Analytical Course Designed for High Schools ...

Benjamin Greenleaf - 1864 - 394 σελίδες
...product, the whole wages will be doubled, trebled, etc. ; that is, changed by a constant ratio. 329. One quantity varies directly as a second and inversely...the second and the reciprocal of the third. Thus, in physics, the attraction of a planetary body varies directly as the quantity of matter, and inversely...

## Algebra for the Use of Colleges and Schools: With Numerous Examples

Isaac Todhunter - 1866 - 553 σελίδες
...manner, the product of the other two is changed in the same proportion. 418. One quantity is said to vary directly as a second and inversely as a third, when...jointly as the second and the reciprocal of the third. Or if A = —j^- , where m is constant, A is said to vary directly as В and inversely as C. 419. 7/AccB,...

## A TREATISE ON ALGEBRA

ELIAS LOOMIS, L.L.D. - 1868
...oc i then the product of T by Y is equal to a constant quantity. 319. One quantity is said to vary directly as a second, and inversely as a third, when it varies as the product of the second by the reciprocal of the third. Thus, according to the Newtonian law of...

## Algebra for Beginners: With Numerous Examples

Isaac Todhunter - 1872 - 328 σελίδες
...where m is constant, A is said to vary jointly as В and C. TA IS 382. One quantity is said to vary directly as a second and inversely as a third, when...jointly as the second and the reciprocal of the third. Or if A =™-S- , where m is constant, A is said to vary С directly as В and inversely as C. 383....

## A University Algebra ...

Edward Olney - 1873 - 323 σελίδες
...ILL. — The amount a laborer receives varies jointly as his daily wages and the time of service. 03, One quantity varies directly" as a second and inversely as a third, when it varies as the quotient of the second divided by the third. ILL. — The time required to earn any amount varies...

## A Treatise on Algebra

Elias Loomis - 1873 - 360 σελίδες
...T a ^ then the product of T by V is equal to a constant quantity. 319. One quantity is said to vary directly as a second, and inversely as a third, when it varies as the product of the second by the reciprocal of the third. Thus, according to the Newtonian law of...

## Algebra for Beginners: With Numerous Examples

Isaac Todhunter - 1876 - 328 σελίδες
...vary jointly as B and C. TA '6 3S2. One quantity is said to vary directly as a second and inrerstly as a third, when it varies jointly as the second and the reciprocal of the thi;d. Or if A — -jj- , where TO is constant, A is said to vary directly as B and inversely as C....