Предмет: Математика, автор: Vika5155

за лето первоклассники собрали 8 к.г. лекарственных трав, второклассники на 4 к.г. больше первоклассников, а третьеклассники на 3 к.г. меньше второклассников.Сколько киллограммов лекарственных трав собрали третьклассники?

арифметическое решение
8+4=12 кг второклассники 12-3=9 третьеклассники

подскажите алгебраическое!!!!!

Ответы

Автор ответа: dedm
1
х-разницу берём
х+3+х-4+х=8
3х-1=8
3х=9
х=3
3*3=9(3 класс)
3*4=12(2 класс)
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It's the 21 st of October, 10 o'clock in the morning. Mr. Blake has come to the Russian Trade Delegation.

Blake: Good morning! My name's Blake. I'm from Blake and Co. I've got an appointment with Mr. Voronin at 10.15.

Receptionist: Good morning, Mr. Blake. Mr. Voronin is expecting you. Will you take a seat, please? Blake: Thank you. I'm a bit early, actually. Receptionist: That's all right, Mr. Blake.

(In a few minutes Voronin comes downstairs to meet ' him).

Voronin: Oh, Mr. Blake, it's nice to see you here. How are you? Blake: Fine, thanks! And you? Voronin: Pretty well too, thank you. This way, please.

(They come into the conference room and take their seats at the table.)

Voronin: Would you like a cup of coffee? Blake: Yes, please. It's very cold and wet outside today. Voronin: Yes, the weather hasn't been very good lately. Blake: That's right, but it's usually warm here in October. Now,

Mr. Voronin, how about our quotation and catalogues? Have you looked through them?

Voronin: Sure! We've studied them closely. The new model is certainly good. Blake: Yes, it's of high quality. We've just starting producing the model and we've already received a lot of orders.

Voronin: Your machines meet our requirements and we are interested in buying them. Mr. Blake, have you seen our contract form? Blake: Not yet.

Voronin: Would you like to look through it?

Blake: I certainly would.

Voronin: Here you are Mr. Blake. Please study our terms and let's meet again next on Tuesday. Blake: All right, Mr. Voronin. Good-bye for now.
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