Предмет: Математика, автор: myrka27012009

номер 118,122
СРОЧНО!!!​

Приложения:

Ответы

Автор ответа: mteryaeva993
0

Ответ:

Пошаговое объяснение:

#118

1)144:300=0.48(кг)-олії з 1кг насіння

2)225*0.48=108(кг)-олії з 225кг насіння

3)1ц=100кг

420:0.48=875(кг)-насіння потрібно

#119

520-100%

х-18%

х=520*18:100

х=93.6(га)

mar81939: Помогите мне с математикой пж)
Автор ответа: iramazurk
0

Ответ:

Пошаговое объяснение:

118.

300 кг семян = 144 кг масла

225 кг семян = х кг масла

300/225 = 144/х

х = 225*144 / 300

х = 32400/300

х = 108 кг масла

4,2 ц масла = 420 кг масла

300 кг семян = 144 кг масла

х кг семян = 420 кг масла

300/х = 144/420

х = 300*420 / 144

х = 126000/144

х = 875 кг семян

122.

720 км = 72000000 см

х/72000000 = 1/9000000

х = 72000000 * 1 / 9000000

х = 72000000/9000000

х = 8 см

mar81939: Здравсивуйте
mar81939: Помогите мне с математикой пожалуйста у меня в профиле)
mar81939: .?)заметьте пж
iramazurk: Сейчас посмотрю
iramazurk: Извини, с неравенствами не знаю как делать
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