Suppose that y is directly proportional to x. Use the given information to find the constant of proportionality k. Then use y = kx to find y for the given value of x.y = 39 when x = 6;
Find y given x = 12.
A. k = 6.5; y = 78
B. k = 6.5; y = 90
C. k = 234; y = 
D. k = 6.25; y = 75
Answer: A
Mathematics
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