Proportion Identification
a) Which of the following represents a proportion?
\[ \frac{1}{5} = \frac{4}{10} \]
\[ \frac{3}{4} = \frac{6}{9} \]
\[ \frac{5}{4} = \frac{7.5}{6} \]
\[ \frac{15}{25} = \frac{30}{60} \]
The correct proportion is (c) \[ \frac{5}{4} = \frac{7.5}{6} \]
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b) Identify the correct proportion:
\[ \frac{1}{3} = \frac{2}{5} \]
\[ \frac{4}{7} = \frac{8}{15} \]
\[ \frac{2}{3} = \frac{10}{15} \]
\[ \frac{5}{8} = \frac{9}{16} \]
The correct proportion is (c) \[ \frac{2}{3} = \frac{10}{15} \]
MR/Nasef.N
c) Which equation shows equivalent ratios?
\[ \frac{7}{12} = \frac{14}{25} \]
\[ \frac{3}{5} = \frac{6}{11} \]
\[ \frac{4}{9} = \frac{12}{27} \]
\[ \frac{8}{15} = \frac{16}{35} \]
The correct proportion is (c) \[ \frac{4}{9} = \frac{12}{27} \]
MR/Nasef.N
d) Select the true proportion:
\[ \frac{9}{14} = \frac{18}{30} \]
\[ \frac{5}{11} = \frac{15}{34} \]
\[ \frac{6}{13} = \frac{18}{39} \]
\[ \frac{7}{16} = \frac{21}{48} \]
The correct proportion is (c and d ) \[ \frac{6}{13} = \frac{18}{39} \] \[ \frac{7}{16} = \frac{21}{48} \]
MR/Nasef.N
e) Which pair forms a proportion?
\[ \frac{3}{8} \text{ and } \frac{9}{25} \]
\[ \frac{4}{7} \text{ and } \frac{16}{35} \]
\[ \frac{5}{12} \text{ and } \frac{15}{36} \]
\[ \frac{2}{9} \text{ and } \frac{6}{28} \]
The correct proportion is (c) \[ \frac{5}{12} \text{ and } \frac{15}{36} \]
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