Предмет: Математика, автор: даша2837

Оля с папой шли к озеру 1/3 часа со скоростью 100м/мин а потом еще 1/3 часа со скоростью на 30м/мин меньше. Какое расстояние пройшли Оля и пападо озера . Решается 3 способоми

Ответы

Автор ответа: влно1
0
1/3часа =60÷3=20мин.
за 20мин. они прошли
20×100=2000м
вторая скорость составила
100-30=70м./мин.
с этой скоростью за 20мин.они прошли
20×70=1400м.
расстояние до зера
2000+1400=3400м
Автор ответа: sadertdinova201
0
первый способ
1/3*60=20 мин
20*100=200 м
100-30=70 м/мин
70*20=1400 м 
1400+200=1600м до озера

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