Вопрос школьника по предмету Алгебра
Белка приносит орех в гнездо. Путь от гнезда до орешника и обратно белка преодолевает за 20 минут. Определитете расстояние от орешника до гнезда, если известно, что налегке белка бежит со скоростью 5м/с, а с орехом 3м/с
Ребят, напишите пожалуйста в краткой записью, вот она очень нужна
Ответ учителя по предмету Алгебра
S/5 + S/3 = 20 * 60
S(1/5 + 1/3) = S * 8/15 = 120
S = 225
Похожие вопросы от пользователей
a) They, me, them
b) Them, I, they
c) Them, me, they
d) They, I, they
22. I have… times to help you.
a) many
b) much
c) any
23. He has ___ books at home
a) much
b) little
c) few
d) any
24. His daughter feels bad, so she … stay home instead of going to the cinema.
a) can
b) must
c) may
d) has to
25. Having finished the work children …play the computer.
a) may
b) will be allowed to
c) can
26. Parents are ill, they … see a doctor..
a) must
b) can
c) may
d) have to
27. Pete … run long distances.
a) must
b) can
c) may
28. I bring five ….
a) knifs
b) knives
c) knifes
29. There are many … in the gym.
a) sportsman
b) sportsmen
c) sportmens
30. He has ill … .
a) foot
b) foots
c) feet
31. There are many … in this city.
a) librarys
b) libraries
c) libraryes
32. How many … are there in the room?
a) furniture
b) furnitures
c) furniturs
33. I see children … in the yard.
a) play
b) playing
c) are playing
34. I meet Betty. I’ll help … to find a new job.
a) she
b) her
c) hers
35. Do you read the book?
a) GQ
b) SQ
c) AQ
d) DQ
36. What did he do yesterday?
a) GQ
b) SQ
c) AQ
d) DQ
37. Will you read or write?
a) GQ
b) SQ
c) AQ
d) DQ
38. … are green.
a) The eyes of Helen b) Helen’s eyes c) Helens’ eyes
Сделайте пожалуйста, очень срочно.