Вопрос школьника по предмету Математика
реши уравнения 1)129*8=x*4 (2) 407*9=y*3 (3) 2836*3=a*4 (4) 3050*5=d*2
Ответ учителя по предмету Математика
1) 129*8=x*4
1032=4x
x=258
или
129*2=x
x=258
2) 407*9=y*3
3663=3y
y=1221
ну или
407*3=y
y=1221
3) 2836*3=a*4
8508=4a
a=2127
ну или
709*3=a
a=2127
4) 3050*5=d*2
15250=2d
d=7625
ну или
1525*5=d
d=7625
Похожие вопросы от пользователей
Теплоход рассчитан на 750 пассажиров и 25 членов команды. Каждая спасательная шлюпка может вместить 70 человек. Какое наименьшее число шлюпок должно быть на теплоходе, чтобы в случае необходимости в них можно было разместить всех пассажиров и всех членов команды?
121:(х-45)=11
Complex Object
I. Write the sentences using the complex object
1. The Smiths want_______________ (we, visit) them next month.
2. Do you want ______________ (she, post) the letter for you?
3. What does the teacher expect ______________ (his pupils, do)during the lesson?
4. When do you expect ____________________ (they, arrive) ?
5. The man wouldn’t like _____________________ (his son, become) a dentist.
6. Alice didn’t expect ______________________ (the exams, start) in April.
7. Don’t make ____________________ (I, repeat that again).
8. The teacher let ___________________ (the class, go) home early.
9. She wanted ____________________ (her husband, borrow) some money to buy a car.
10. I know _____________________ (he, be) a very experienced driver.
11. Nobody noticed ___________________ (we, leave) the room.
12. Tim didn’t want _____________________ (Richard, be invite) to the party.
13. She made ________________________ (her daughter, do the chores).
14. What made ______________________ (you, believe) him?
15. Let ________________________ (Mary, explain) you everything.
II. Use the complex object with or without to
1. The mother made her son _____ tell the truth.
2. Let me ___ pay for the meal.
3. Lisa doesn’t want Pete ____ come back.
4. Martha didn’t expect David ___ ask such an embarrassing question.
5. They would like us ___ take part in the competition.
6. Glasses make him ___ look older.
7. My lawyer advised me not ____ tell anything to the police.
8. Having a car enables you ___ travel round more easily.
9. Don’t let him ___ punish the child.
10. I’ve never been to England but I’d like ___ go there.