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3 votes
Proportion: test worth 50 points test score 84%

2 Answers

2 votes
50x0.84=42, so 42 points
User MMoovs
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7.0k points
4 votes

\begin{array}{ccc}100\%&-&50\ pts\\\\84\%&-&x\ pts\end{array}\ \ \ |cross\ multiply\\\\100x=50\cdot84\ \ \ \ |divide\ both\ sides\ by\ 100\\\\x=(50\cdot84)/(100)\\\\x=(1\cdot84)/(2)\\\\\boxed{x=42\ (pts)}
User Klendi
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6.6k points