woolseylisa woolseylisa

22-01-2015
Mathematics

Answered

Proportion: test worth 50 points test score 84%

Answer :

torreyem torreyem

22-01-2015

50x0.84=42, so 42 points

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Аноним Аноним

23-01-2015

[tex]\begin{array}{ccc}100\%&-&50\ pts\\\\84\%&-&x\ pts\end{array}\ \ \ |cross\ multiply\\\\100x=50\cdot84\ \ \ \ |divide\ both\ sides\ by\ 100\\\\x=\frac{50\cdot84}{100}\\\\x=\frac{1\cdot84}{2}\\\\\boxed{x=42\ (pts)}[/tex]

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