[tex] \frac{3 \times {10}^{ - 3} }{0.072} \times 100\% = \frac{3 \times {10}^{ - 3} }{72 \times {10}^{ - 3} } \times 100\% = \frac{1}{24} \times 100\%\\ = \frac{100}{24} \% = \frac{25}{6} \% = 4 \frac{1}{6} \% = 4.1(6)\%[/tex]

Пошаговое объяснение:

(3 * 10-³)/0,072 * 100% = (3 * 10-³)/(72 * 10-³) * 100% = 3/72 * 100% = 1/24 * 100% = 100/24% =

25/6% = 4 1/6%