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OpenStudy (anonymous):
If D varies directly with t and D is 105 when t is 3, find D when t is 8. 35 280 840 whahwhawhawhawhhwhattttt
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OpenStudy (anonymous):
280
OpenStudy (anonymous):
The formula for direct variation is D = kt.
OpenStudy (anonymous):
First find k.
OpenStudy (anonymous):
105 = k(3) k = 105 / 3 = 35 D = 35t When t = 8, D = 35(8) = 280
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