 | William James Milne - 1902 - 620 σελίδες
...у and z, x is equal to their product multiplied by a constant. 348. One quantity or number varies directly as a second and inversely as a third when...jointly as the second and the reciprocal of the third. Thus, the time required to dig a ditch varies directly as the length of the ditch and inversely as... | |
 | George Egbert Fisher, Isaac Joachim Schwatt - 1902 - 504 σελίδες
...an hour, 90 miles in 3 hours at the rate of 30 miles an hour, 40 90 120 and 2 x 20 3 x 30 5 x 24 5. One quantity is said to vary directly as a second and inversely as a third, when it varies as the second and the reciprocal of the third jointly. Thus, if x varies directly as y and inversely... | |
 | Louis Parker Jocelyn - 1902 - 460 σελίδες
...declared. "ж varies as у and г " is written xccyz. 4. Direct and Inverse Variation. One quantity varies directly as a second and inversely as a third when it varies directly as the product of the second and the reciprocal of the third. ILLUSTRATION. " x varies directly... | |
 | Webster Wells - 1904 - 642 σελίδες
...the number which he receives in one day, and the number of days during which he works. One variable is said to vary directly as a second and inversely...jointly as the second and the reciprocal of the third. Thus, the attraction of a body varies directly as the amount of matter, and inversely as the square... | |
 | John Charles Stone, James Franklin Millis - 1905 - 776 σελίδες
...Substituting, 36=fc-3-2. Hence, fc=6. Therefore, a=6fec is the required equation. 212. One variable is said to vary directly as a second and inversely as a third, when it varies as the quotient of the second divided by the third. If £ varies directly as d and inversely as v,... | |
 | Webster Wells - 1906 - 484 σελίδες
...which he receives in one day, and the number of days during which he works. 352. One variable number is said to vary directly as a second and inversely...jointly as the second and the reciprocal of the third. Thus, the attraction of a body varies directly as the amount of matter, and inversely as the square... | |
 | Webster Wells - 1906 - 550 σελίδες
...which he receives in one day, and the number of days during which he works. 352. One variable number is said to vary directly as a second and inversely...jointly as the second and the reciprocal of the third. Thus, the attraction of a body varies directly as the amount of matter, and inversely as the square... | |
 | Webster Wells - 1908 - 456 σελίδες
...which, he receives in one day, and the number of days during which he works. 160. One variable number is said to vary directly as a second and inversely...jointly as the second and the reciprocal of the third. Thus, the attraction of a body varies directly as the amount of matter, and inversely as the square... | |
 | William James Milne - 1908 - 476 σελίδες
...as y and z, x is equal to their product multiplied by a constant. 501. One quantity or number varies directly as a second and inversely as a third when...jointly as the second and the reciprocal of the third. Thus, the time required to dig a ditch varies directly as the length of the ditch and inversely as... | |
 | Albert Harry Wheeler - 1908 - 700 σελίδες
...by a body moving uniformly is proportional both to the rate and the time. 35. One variable number or quantity is said to vary directly as a second and inversely as a third if it varies directly as the second and inversely as the third jointly. We may indicate that x varies... | |
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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... 
