Trump pay 389$. Make friend with me!

15 pens cost:

(15000 : 5). 15 = 45000 (đ)

7 pencils cost:

59000 - 45000 = 14000 (đ)

One pencil costs:

14000 : 7 = 2000 (đ)

12 dollars

Hint: Supppose that Darwin bought x eraser boxes, then he bought \(\frac{4}{5}x\) pencil boxs. (\(x\in N,x>0\)

Because Darwin spent 240 dollars so we have equation:

\(4x+\left(4+6\right).\frac{4}{5}x=240\)

\(\Rightarrow12x=240\Rightarrow x=20\)

So Darwin bought 20 eraser boxes and 16 pencil boxes.

Have a good time :))

 I don't no

Một hộp tẩy giá 4 USD. Một hộp bút chì có giá 6 đô la hơn. Darwin đã chi 240 đô la trên một số hộp tẩy và bút chì. Tỷ lệ số lượng các hộp bút chì để số lượng các hộp tẩy là 4: 5. ông đã mua bao nhiêu hộp bút chì?

1 eduro =100 eurecents , so Helga has :

5x100=500 eduro

the cost of 5 notebooks are:

80x5=400

when she buy 5 notebooks money she has is

500-400=100 eurecents

one pencil costs 30 eure so 3 pencils cost are : 30x3=90 eure

So Helge can afford to buy 3 pencils and she plainti 10 eure

Nhớ k cho mình nha minh k lại cho 

1. How much is a bowl of noodles?,.What is the prize of your hat?.

mik làm đc 1 câu thui

1. How much does your new hat cost?

- What is the price of your new hat?

2. How much does her shoes cost?

- What is the price of her shoes?

3. How much is his car?

- What is the price of his car?

4. How much is your house?

- What is the price of your house?

5. How much do these flower cost?

- How much are these flower?

6. How much did this hat?

- How much was this hat cost?

7.How much did those pencil?

- What were the price of these pencil?

8. How much was that car cost?

What was the price of that car?

1..how is  your new hat ? 

how does your new hat cost ? 

what is the price of your new hat  ?

2 how much is her shoes  ?

>how much does her shoes cost ?

>what is the price of her shoes ?

3 how much does his car cost ?

> how much is his car  ?

>what is the price of his car cost ?

4 how much did your house cost ?
>how much were your house  ?

>what is the price of your house?

5 what is the price of these flowes ?

>how much does these flowers cost?

>how much are these flowers ?

6 what was the price of this hat ?

>how much did this hat cost ?

>how much was this hat ?

7 how much were those pencils ?

>how much did those pencils cost ? 

>what is the price of those pencils ? 

8 how much did that car cost ?
>how much was that car ?

>what is the price of that car ?

The total pencils in those five pack are 95 pencils

sắp xếp

:1,a/send/how/cost/to/does/oversea/it/much/abroad/letter?

how much does it cost to send a letter oversea?

2,a/letter/how/is/much/USA/the/to?

how much is a letter to the USA?

3,total/the goods/mother/what/cost/your/is/of/buys/the?

what is the total cost of the goods your mother buys?

4,cost/local letter/does/Vietnam/how/it/to mail/a/in/much?

how much does it cost to mail a local letter in VN?

5,needs/a phone card/thousand dong/post office/fifty/the/Nhung/to/buy/at.

Nhung needs to buy a fifty thousand dong phone card at the post office?

6,those/you/buy/are/souvernirs/want/the/to?

are those the souvernirs you want to buy?

7,ahead/take/street/the right/staight/and/the/second/on/go.

go straight ahead and take the second street on the right

8,you/thank/birthday/very/for/much/present/your.

thank you very much for your birthday present

9,the girls/most/of/in/enjoy/recess/catch/rope/my/skipping/class/and/playing.

most of the girls in my class enjoy skipping rope and playing catch at recess

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