Question

2/9 k +2/4=1 помогите пожалуйста
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Answer 1

Объяснение:

$\frac{2}{9} k + \frac{2}{4} = 1 \\ \frac{2}{9} k + \frac{1}{2} = 1 \\ \frac{2}{9} k = 1 - \frac{1}{2} \\ \frac{2}{9} k = \frac{2}{2} - \frac{1}{2} \\ \frac{2}{9} k = \frac{2 - 1}{2} \\ \frac{2}{9} k = \frac{1}{4} \\ k = \frac{1}{4} \times ( \frac{9}{2} ) \\ k = \frac{1 \times 9}{2 \times 2} \\ k = \frac{9}{4} = 2 \frac{1}{4} = 2.25$