waecmaths question:
If $x=\frac{2}{3}$ and y = – 6, evaluate $xy-\frac{y}{x}$
Option A:
0
Option B:
5
Option C:
8
Option D:
9
waecmaths solution:
$xy-\frac{y}{x}=\frac{2}{3}(-6)-\frac{-6}{\tfrac{2}{3}}=-4-[-6\times \tfrac{3}{2}]=-4-(-9)=-4+9=5$
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