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OpenStudy (anonymous):
If y varies directly as x, find the constant of variation if y = 12 when x = 1/3 A. 36 B. 4 C. 6 D. 12
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OpenStudy (anonymous):
@jim_thompson5910 a little confused on this?
jimthompson5910 (jim_thompson5910):
y = kx .. because "y varies directly as x" 12 = k*(1/3) ... plug in the given values solve for k
OpenStudy (anonymous):
I got 4
jimthompson5910 (jim_thompson5910):
no
jimthompson5910 (jim_thompson5910):
you do NOT do 12*(1/3) or 12/3
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OpenStudy (anonymous):
no its A sorry lol
jimthompson5910 (jim_thompson5910):
you have multiplication of 1/3 on the right side so you to undo this, you multiply both sides by 3
jimthompson5910 (jim_thompson5910):
yes it's 36
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