Question

а)10×x=8
б)x×4=2,4
в)4,8÷x=6
г)x÷25=1,2​

Answer 1

Ответ:

а)

$10 \times x = 8 \\ x = 8 \div 10 \\ x = \frac{8}{10} \\ x = \frac{4}{5}$

б)

$x \times 4 = 2.4 \\ x = \frac{2.4}{4} \\x = \frac{2 \frac{2}{5} }{4} = \frac{ \frac{12}{5} }{4} = \frac{12}{20} = \frac{3}{5}$

в)

$4.8 \div x = 6 \\ x = 6 \times 4.8 = 28.8$

г)

$x \div 25 = 1.2 \\ x = 1.2 \times 25 = 30$