SOLUTION: I am stuck on correct answer for: If x is directly proportional to y and x = 3 when y = 8, what is the value of x when y = 2 I am not using a specific book. I am just prac

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Question 54229: I am stuck on correct answer for:
If x is directly proportional to y and x = 3 when y = 8, what is the value of x when y = 2

I am not using a specific book. I am just practicing...
Answer by Cintchr(481) About Me  (Show Source):
You can put this solution on YOUR website!
Directly proportional
+k+=+y%2Fx+
x=3 and y=8
+k+=+8%2F3+
This is your constant value. Keeping the constant, plug in the new values.
+8%2F3+=+2%2Fx+
Cross multiply and solve for x (reduce to lowest terms)
+8x+=+3%282%29+
+8x+=+6+
+x+=+6%2F8+
+x+=+2%2F3+