Question 1109381
Same problem, different numbers.
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y is directly proportional to x, and y = 20 when x = 6. What is y when x = 14?
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 y = k*x
 20 = k*6
 k = 10/3
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 What is y when x = 14?
 y = 14*10/3 = 140/3
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 You don't have to solve for k:
 20/6 = y/14
 Cross multiply
 6y = 280
 y = 140/3