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The variables x and y are directly proportional, and y = 2 when x = 3. What is the value of y when x = 9 ?

 Apr 10, 2020
 #1
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We have that

 

y = k*x

And we know that

2 = k*3

k = 2/3

 

And  when x  =  9

y = (2/3) (9)  =    6

 

 

 

cool cool cool

 Apr 10, 2020

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