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T varies directly as r and inversely as s t equals 2 when are equals 26 and s equals 78?
Wiki User
∙ 14y ago
(direct variation) t = kr, where k is any constant, and it is called the constant of the variation.
t = 2 when r = 26
t = kr
2 = k(26) (divide by 26 to both sides)
2/26 = k
k = 1/13
(indirect variation) t = c/s, where c is any constant, and it is called the constant of the variation.
t = 2 when s = 26
t = c/s
2 = c/78 (multiply by 78 to both sides)
156 = c
Wiki User
∙ 14y ago
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