Question

Помогите Пожалуйста ​

Answer 1

Ответ:

1) 16 : х = 3 : 6

16 : х = 3 : 6, х ≠ 0

96 = 3х

3х = 96

х = 32

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2) у : 7 = 24 : 8

$\frac{1}{7}y = 3$

у = 21

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3) 108 : у = 18 : 9

108 : у = 18 : 9, у ≠ 0

972 = 18у

18у = 972

у = 54

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4)

$12 \div a = 7 \frac{1}{8} \div 4 \frac{3}{4}$

$12 \div a = 7 \frac{1}{8} \div 4 \times \frac{3}{4}$, а ≠ 0

$\frac{12}{a} = \frac{57}{8} \times \frac{1}{4} \times \frac{3}{4}$

$\frac{12}{a} = \frac{171}{128}$

$1536 = 171a$

$171a = 1536$

$a = \frac{512}{57}$

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