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1) При изготовлении 3 одинаковых измерительных приборов израсходовали 21 г серебра. Сколько граммов серебра надо для изготовления 8 таких приборов?
2) За 24 ч помпа перекачивает 18 м в квадрате воды. Сколько кубических метров воды перекачала эта помпа за 10 часов работы?
3) При изготовлении 6 одинаковы измерительных приборов израсходовали 21 грамм серебра. Сколько граммов серебра надо для изготовления 8 таких приборов?
4) За 48 ч помпа перекачивает 18 м в квадрате воды. Сколько кубических метров воды перекачала эта помпа за 10 часов работы?
ОТВЕТЬТЕ БЫСТРЕЕ ПОЖАЛУЙСТА-
Предмет:
Математика -
Автор:
hankqa0b - 5 лет назад
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Ответы 2
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сорян но #2 и #4 чёт не могу, туплю
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Автор:
bria - 5 лет назад
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0
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#121:3=7г серебра надо на один прибор7*8=56г ответ 56 г нужно для изготовления 8 таких же деталей#3 21:6=3,5г3,5*8=28гответ 28 г
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Автор:
yadielrvgm - 5 лет назад
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0
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