Question

7,2:2,4=0,9:x
помогите

Answer 1

$7.2 \div 2.4 = 0.9 \div x \\ x = \frac{2.4 \times 0.9}{7.2} = \frac{2.4}{8} = 0.3$

Answer 2

7,2:2,4= 0,9:x ... 7,2 : 2,4 = 0,9 : X 7,2X = 2,4 * 0,9 7,2X = 2,16. X = 2,16 : 7,2. X = 0,3.