Предмет: Математика, автор: zakovaksenia5

10. в мотке 180 м провода. Шестую часть прово- да использовали на электропроводку в спорт- зале, а оставшийся провод израсходовали при изготовлении 50 одинаковых настольных ламп. Сколько метров провода понадобилось ДЛЯ одной лампы? ​

Ответы

Автор ответа: Alary9
1

Ответ:

2,8 метра на одну лампу.

Пошаговое объяснение:

180:6=20 м- использовали на проводку спорт-зала

180-20=140 м - для изготовления ламп

140:50=2,8 м - для одной лампы

Ответ: 2,8 метров.

Автор ответа: barristercheb
1
Ответ: 3,2 метра
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