Предмет: Математика, автор: сапирпапр

за 2 минуты самолет прлетел 40 км .какое растояние он пролетит он за 40 минут,если его скорость увиличится на 5 км/мин?

Ответы

Автор ответа: oksanasorokina

40:2=20 км/мин первоначальная скорость
20+5=25 км/мин стала
25*40=1000 км пролетит за 40 мин

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: amirkolencenko

Машина проехала 60км. Этот путь составил 2/5 части всего пути. Определите сколько километров составляет весь путь.

7 лет назад

Предмет: Английский язык, автор: lizacat03245987

Пожалуйста,помогите!
Put the verb brackets into the past indefinite. The past Continuous. the Past Perfect and the Past Perfect Continuous
I. 1. Where you (go) when I (meet) you in the street yesterday? - I (go) to tell the watchmaker that he (forget) to send my watch .2. This, however, (enable) him to add some ideas which he (omit) in the first copy.3. They (decide) lo rebuild the church when they (find) that the cement used (begin) to crumble.4. He (be) so ill that he (find) himself unable to complete the work he (begin).5. She (turn) the light back and (lie) on the sola and (take) up the hook she (read).6. His secretary (take) the paper from the table where he (put) it and (go) out.7. It (be) near midnight when they (come) in from dinner, still laughing at something he (say) in the dining-room.8. It (be) two o'clock. Eliza (be) suddenly thoroughly awake. She (sit) up in her bed and (circle) her knees with her arms. It (rain), the way it (rain) for days.9. In his turn Jolyon (look) back at his son. He (want) lo talk about many things that he (be) unable to talk about all these years.10. She (be) at the station after all, standing just as he (imagine), apart from the others.11. He (come) back on Saturday, as he (promise). They all (wait) for him in the sitting-room. When he (enter), everybody (rush) forward to him to embrace and hug him in greeting.12. The stale of his clothes indicated that he (play) football in the muddy field.
II. 1. The woman (busy) herself with cooking, while the man (slice) bacon and (fire) the stove.2. He was up before the sun on the last day. A gale from the west (blow) all night, making him wakeful.3. It (be) a cold, harsh, winter day. There (be) snow some hours before, and it (he), not deep, but hard-frozen on the ground. 4. He (try) to Catch what they (say), but they (be) too far from him and (speak) in very low voices.5. As the wet twilight (deepen), I (stop) in a solitary bridle-path, which I (pursue) an hour or more.6. He (not/be) so much surprised to see me as I (expect).7. I (go) to bed and (fall) asleep, when my guardian (knock) at the door of my room and (beg) me to get up directly.8. I (have) a wash and brush-up before starting out to go to the luncheon Elliot (invite) me to, when they (ring) up from the reception to say that he (be) below.9. Mrs Bedwin, who (listen) at the parlour door, (hasten) into the corridor in a breathless state.10. Sara (be right) in her prediction. Madam Sharon's face (be) a picture the next morning when she (find) out that Sara (go).

7 лет назад

Предмет: Английский язык, автор: toqtanavis

1. Read the model text and answer the questions.
1) Who is Nurlan writing to? Why is he writitng?
2) Which paragraph gives Nurlan's news?
3) Where did Nurlan go last weekend?
4) Which paragraph gives details of Nauryz?
5) Why does Nurlan want Alex to come?

7 лет назад

Предмет: Математика, автор: 764347736

3bx+2a=4a помогите пожалуйста мне очень нужно

10 лет назад

Предмет: Алгебра, автор: Dossipen

Решите пожалуйста с полным решением

10 лет назад