2. Adeline and Mandy had some money in the ratio 3:7. After Adeline received $90 and Mandy received $40, both girls had equal money. How much money did they have at first?
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Bài toán tiếng anh này tuy mình giải được nhưng nó có hơi dài. Đây là đề sau khi dịch ra tiếng Việt:
Sau khi chi tiêu một số tiền, Belinda, Jessica và Anna đã có một tiền trước đó. Belainda dành 1/2 số tiền của mình, Jessica đã dành 10% số tiền của cô và Anna đã chi $ 850. Nếu họ đã có tổng cộng $ 5697 cuối cùng. Tìm số tiền lúc đầu ba cô gái đã có?
Tuy vậy nhưng không có dữ liệu để tìm ra số tiền lúc đầu của cô Anna nên ta tìm số tiền của Belinda và Jessica trước .
Mình có viết chữ thế này đâu nhỉ?
Cái kia là $60 các bạn nhé:)
Tỉ số tiền của Sally và Barry là 6:11 \(\left(\frac{6}{11}\right)\). Nếu Barry đưa 300 đô la cho Sally, họ sẽ có cùng một số tiền. Tính số tiền Sally có lúc đầu?
Answer (Bài giải):
We have the following diagram (Ta có sơ đồ):
The money of Barry (Số tiền của Barry là):
300 : (11 - 6) x 11 = 660 (dollars)
The money of Sally (Số tiền của Sally là):
300 : (11 - 6) x 6 = 360 (dollars)
david đã có một số monney. mẹ anh ấy đã cho anh ấy 120more.hebought3shirtsat120more.hebought3shirtsat120 nữa. anh ấy đã mua 3 chiếc áo sơ mi với giá 47 chiếc mỗi chiếc và chi 66onfood.thenhesharedtheremainingmoneyoutamonghistwosisterequally.ifhissistersreciosystem66onfood.thenhesharedtheremainingmoneyoutamonghistwosisterequally.ifhissistersreciilities66 vào đồ ăn. sau đó anh ta chia đều số tiền còn lại cho hai chị gái của mình. nếu các chị gái của anh ấy nhận được 30 mỗi người thì ban đầu david có bao nhiêu tiền
dịch ra đi zời, ai rảnh mà vừa trả lời câu hỏi, vừa dịch kia chứ
Kit Mun receive:
246:2=123(dollars)
Amy receive:
123+100=243(dollars)
Answer:243 dollars
31. yesterday / I / go / Thanh Ba Post Office / send some money / my brother / the city
a. Yesterday I went to Thanh Ba Post Office where to send some money to my brother who was in the city.
b. Yesterday I went to Thanh Ba Post Office to send some money to my brother in the city.
c. yesterday when I went to Thanh Ba port Office sending some
money to my brother in the city.
d. Yesterday I went to Thanh Ba Post Office and sending some money to my brother in the city.
32. I/ arrive / 7 am / the post office / open
a. When I arrived at 7 am., the post office which had just been opened.
b. When I arrived at 7 am., the post office had just been opened.
c. I arrived at 7 am., when the post office had just been opened.
d. I arrived at 7 am., at the time the post office had just been opened.
33. the staff / help / me / send the money / very helpful and courteous.
a. the staff helped me to send me the money were very helpful and courteous.
b. the staff that helped me to send the to the money which were very helpful and courteous.
c. the staff whom helped me to send the money were very helpful and courteous.
d. the staff that helped me to send the to send the money were very helpful and courteous.
34. the service / good / only two hours later / my brother / phone / he had received the money
a. the service was so good that only two hours later my brother phoned me to say that he had received the money.
b. The service which was such a good that only two hours later my brother phoned me to tell that he had received the money.
c. the service was such good that only two hours later my brother phoned to tell he had received the money.
d. the service was so good that only two hours when my brother phoned to tell that he had received the money.
35. I / satisfied / the service / Thanh Ba post Office
a. I was satisfied with the service of Thanh Ba Post Office.
b. So that, I was satisfied with the service of Thanh Ba Post Office.
c. Nevertheless, I was satisfied with the service ofThanh Ba Post Office.
d. I was satisfied with the service of Which Thanh Ba Post Office.
#Yumi
Mandy have more than Adeline:
90 - 40 = 50 ("money unit")
At first, Adeline had:
50 : (7 - 3) x 3 = 37,5 ("money unit")
At first, Mandy had:
50 : (7 - 3) x 7 = 87,5 ("money unit")
Answer: Adeline: 37,5 "money unit"
Mandy: 87,5 "money unit"