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OpenStudy (anonymous):
f f(x) varies directly with x and f(x) = 3 when x = 12, then what is the value of f(x) when x = 40? a 480 b 160 c 10 d 4
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OpenStudy (adamaero):
Can you eliminate any choices?
OpenStudy (anonymous):
not really idk how to solve this
OpenStudy (cggurumanjunath):
|dw:1423539439462:dw|
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