Предмет: Математика, автор: revenok76

мотоцикл проехал по дороге 75км за 3 часа.сколько км он проедет за это же время по шоссе,если его скорость станет в 2 раза больше?

Ответы

Автор ответа: Терезочка
8
1) 75:3=25 (км/час) скорость мотоцикла по дороге                                              2) 25*2=50 км/час скорость мотоцикла по шоссе                                                3) 50*3=150 (км) проедет мотоцикл за 3 часа по шоссе                                      Ответ: за 3 часа мотоцикл по шоссе проедет 150 км
Автор ответа: khoteelena
4
1) 75/3=25км/ч скорость мотоциклиста
2) 25*2=50км/ч будущая скорость
3) 50*3=150км проедет мотоциклист
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Положите глаголы в скобках в настоящее простое или настоящее непрерывное время. Помогите пожалуйста. Срочно надо. Заранее спасибо


1) John often ... (to send) e-mail letters to his friends abroad.
2) Paul ... (to write) an e-mail letter to his friend in Canada now.
3) Margaret ... (to look) for a better job at the moment.
4) We ... (to attend) language courses three times a week.
5) The secretary ... (tobe.) busy now. She ... (toprepare) the documents for the conference.
6) My elder brother ... (always to make fun) of me!
7) The professor ... (not to examine) patients now. He ... (to give) a lecture to the students at the moment. He usually ... (to
examine) the patients in the morning.
8) The article ... (to contain) the results of important researches in medicine.
9) You never ... (to tell) me about your problems at school. I'm a bit surprised that you ... (to ask) me for a piece of advice now.
10) Most oils .. (to boil) at 200—300 'C. 11)... the musicians ... (to have) lunch now? — No, they .... They ... (to rehearse) in
the assembly hall. They ... (to perform) some new song's at the concert tomorrow.
12)... doctors ... (to use) antibiotic drugs to fight viruses? — No, antibiotic drugs ... (not to work) against viruses. Doctors
usually ... (to prescribe) antibiotics against bacterial infections.
13) Max ... (always to play) pranks on his classmates!
14) ...- you ... (to wait) for a ferry? — Yes, we ... . The ferry ... (to arrive) at four o'clock.
15) ... Peter and Tim ... (togo) fishing next Thursday? — Yes, ... . They often ... (to go) fishing together. And they always ... (to
invite) me to join them.