Предмет: Математика, автор: maximax325

грузовик проехал 300км со скоростью 50 и ещё 160км со скоростью 40. найти среднюю скорость грузовика на всём пути.

Ответы

Автор ответа: Flash3146
0
300:50=6(ч)-t1
160:40=4(ч)-t2
(300+160):(6+4)=460:10=46
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по этому тексту
I am Tina. I am nine. I wake up at 7 o’clock. I get up and go to the bathroom. I wash my face, clean my teeth and have a shower.

After that I get dressed, then I go to the kitchen and I have breakfast. Usually I have a sandwich with cheese and a cup of coffee. After breakfast I go to school.

I have lessons till 3 o’clock in the afternoon. Then I go home. Sometimes I play games with my friends. In the evening I do my homework, watch TV or read books.

I go to bed at 10 o’clock.
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