Question

номер 1116
$0.25 \div 1.4 = 0.75 \div x \\ 4 \div 8 = 18 \div x$

Answer 1

0,25x = 1,4*0,75
0,25x = 1,05
x = 1,05:0,25
x = 4,2

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4x = 18*8
4x = 144
x = 144 : 4
x = 36