Предмет: Математика, автор: Аноним

4. Реши уравнения.
45 :y = 72 :8
162 + х = 509 — 68
1000 — a = 146 •6


alina23444: 1) y=5; 2)х=279; 3) а=861
alina23444: ;) вроде бы правильно

Ответы

Автор ответа: dea4glezzpop
21

Ответ

1)45÷у=9

у=45÷9

у=5

3)162+х=441

х=441-162

х=279

3)1000-а=24,3

а=1000-24,3

а=975,6

Пошаговое объяснение:

Автор ответа: travozhui
26

Ответ:

1) 45 / у = 72 / 8

  45 / у = 9

   у = 45 / 9

   у = 5

2) 162 +  х = 509 - 68

   162 + х = 441

   х = 441 - 162

   х = 279

3) 1000 - а = 146 * 6

   1000 - а = 876

   а = 1000 - 876

   а = 124

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