Answer
The lines are perpendicular
Work Step by Step
$5x + 3y = 1 \lt=\gt y=\frac{1}{3}-\frac{5}{3}x$
$10 + 3x = 5y \lt=\gt y`=2+\frac{3}{5}x$
$-\frac{5}{3}\times\frac{3}{5}=-1$
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