Percent Exercises

$x = 0.05 \cdot 30$

$x = 7.5$

$x = 0.38 \cdot 56$

$x = 21.28$

$x \cdot 62 = 50$

$\frac{62x}{62} = \frac{50}{62}$

$x = 0.806 = 80.6\%$

$\frac{5}{7} = x \cdot \frac{11}{12}$

$(\frac{12}{11}) (\frac{5}{7}) = (x)(\frac{11}{12}) (\frac{12}{11})$

Multiply both sides by the reciprocal of $\frac{11}{12}$

$\frac{60}{77} = x$

$0.779 = x$

$77.9\% = x$