Предмет: Математика, автор: vstenina

ПОМОГИТЕ ПОЖАЛУЙСТА ОЧЕНЬ НАДО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
90% от 20% числа b равны 9.9 . Найти число b
ПОМОГИТЕ ПОЖАЛУЙСТА

Ответы

Автор ответа: Константин45
0
 frac{90}{10}  ×  frac{2}{10}  × х = 9,9

 frac{18}{100} х = 9,9
х= frac{9,9 *100}{18}  frac{990}{18} = 55

можно сделать проверку 20% от 55 - (55×20)÷100=1100÷100=11
90% от 11 - (11×90)÷100=990÷100=9,9
Автор ответа: vstenina
0
спасибо большое
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1) соль________________

2) перец_______________

3) манго______________

4) ананас______________

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1. Translate:

1) соль________________

2) перец_______________

3) манго______________

4) ананас______________

5) фасоль/бобы____________

6) оливковое масло________

7) мука_______________

8) кокос______________ (8х3= )


2. Сhose the correct word:

1) How many/much flour do we need?

2) Are there many/much oranges on the tree?

3) There isn’t much /many bread for sandwiches.

4) I need a lot of/ much tomatoes to make salad.

5) Do you need much/many butter for the cake?

6) How much/many coconuts are there in the basket? (6х3= )


3. Read and match:

1. May I have your pen? _______

2. May I ask my friend to come to the party? ____

3. May I wash my hands, please?_______

4. May I watch the late night film, please? ____

5. May I taste the lemon pie, please ?____

6. May I sit down, please? _____



A Not yet. It’s still very hot.

B Yes, of course.

C Of course, you may. What’s his name?

D No, I’m sorry. I need it.

E Sure, the bathroom is upstairs, next to Tony’s bedroom.

F No, you may not. You have school tomorrow. (6х3= )


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