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мотоциклист двигался 2 часа 45 минут со скоростью 60 км/час, затем 3 часа 36 минут - со скоростью 50 км/час. Сколько километров преодолел мотоциклист?
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Предмет:
Математика -
Автор:
frankieiqld - 5 лет назад
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Ответы 1
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2ч 45мин= 165 мин3ч 36мин= 216 мин60 км/ч= 3600м/мин50 км/ч= 3000 м/мин 1) 165×3600=594000(м)- за 2ч 45 мин2) 216×3000=648000 (м)- за 3ч 36 мин3) 594000+648000=1242000 (м)- всего1.242.000м= 1.242 кмОтвет: 1.242 км.
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Автор:
rin tin tinyu - 5 лет назад
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