Предмет: Алгебра, автор: darialeon2008

Помогите! даю 25 баллов!!!!срочно!!!
Опытное поле разбили на два участка. Площадь первого участка a га, а второго — b га. С каждого гектара первого участка собрали 42 ц пшеницы, а с каждого гектара второго участка собрали 44 ц. Сколько пшеницы собрали с обоих участков?

42⋅44+ab
42⋅a−44⋅b
42⋅44(a+b)
42a+44b

Вычисли при a= 80 и b= 100.

Ответ: _____ ц.

Ответы

Автор ответа: helloset57
1

Ответ:

Всего собрали 7760 ц пшеницы


Аноним: Выражение где?
darialeon2008: спасибо
Автор ответа: Аноним
1

Ответ:

42а+44б; 7760ц.

Объяснение:

42*а=42а ц. пшеницы с первого поля

44*б=44б ц. пшеницы со второго поля

Выражение

42а+44б ц. всего собрали пшеницы.

Если

а=80

б=100

42*80+44*100=3360+4400=7760 ц.


darialeon2008: спасибо!!!!
darialeon2008: и ответ есть, и все понятно...
Аноним: Пожалуйста.
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