Answer
$35$.
Work Step by Step
Step 1. As x varies directly as y, we have $y=kx$ where $k$ is a constant.
Step 2. As $x=20$ when $y=14$, we have $14=k(20)$, thus $k=0.7$
Step 3. For $x=50$, we have $y=0.7(50)=35$.
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