Вопрос школьника по предмету Математика
2124 : (12x + 9. 3?) + 436 = 448
Ответ учителя по предмету Математика
Непонятно, что за знак вопроса в условии…
Если Вы имели в виду
2124 : (12x + 9,3) + 436 = 448,
то
2124 : (12x + 9,3) = 448 — 436
2124 : (12x + 9,3) = 12
12(12х + 9,3) = 2124
144х + 111,6 = 2124
144х = 2124 — 111,6
144х = 2012,4
х = 2012,4 : 144
х = 13,975
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Topsy and Betty want to go to school and they need your help. Write a letter to them and answer their questions.
What can I say when … ?
— I want to come in;
-I want to answer a question;
-I want to ask a question;
-I want to close the window.
TO: Topsy and Hetty
FROM:————
Hi, Topsy and Hetti,
I’ll tell you what you can say to your teacher.
When you want to come in, say, «May I come in?»
When you want to ask a question, say,_______________________________________________________________________________________________________________________________________
When you want to answer a question, say,__________________________________________________________________
When you want to close the window, say,_____________________________________
You may do it when your teacher says, «Yes,___________________________________
You Justin’s do it when your teacher says, «No,_________________________________
Bye-bye!
_____________________________________________________________________
Помогите пожалуйста, что нужно дописать.
Заранее спасибо!