Пропорция. 40 - у 5 _____ = __ 30. 6

Question

Пропорция.
40 - у 5
_____ = __
30. 6

Answer 1

40-у=30*5/6
40-у= 150/6
40-у=25
-у=40:25
у=1,6

Comments

Спасибо

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Не за чо

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4/7 = 21-у/28

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Второй))

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1. 7/4 = 21-у/28
2. 220/у-49 = 11/13
3. 21/53 = 220/у+300
4. 29/30 = 78/3у-2

Answer 2

40-y=150/6
40-y=25
y=40/25
y=1,6

Comments

1. 7/4 = 21-у/28
2. 220/у-49 = 11/13
3. 21/53 = 220/у+300
4. 29/30 = 78/3у-2

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Плез))