In the fỉrst semester, the ratio between excellent student and the rest of this class are 3/7. In the next semester, there are 4 good students becomes excellent, so that the number of excellent are 2/...

P

piojoi

27 tháng 12 2023

In the fỉrst semester, the ratio between excellent student and the rest of this class are 3/7. In the next semester, there are 4 good students becomes excellent, so that the number of excellent are 2/3 the rest. How many students are there in this class?

#Toán lớp 7

0

NN

Nguyễn Ngọc Vân

4 tháng 4 2017

In semester I, the number of good students in class 6D was equal to \(\dfrac{2}{7}\) of the remaining students. Into semester II, the number of good students increased by 8 students (the number of students in the class was unchaged), so the number of good students became \(\dfrac{2}{3}\) of the rest. How many students were there in class 6D?

#Toán lớp 6

0

TV

Trịnh Vũ Việt Anh

1 tháng 5 2017

In semester I, the number of good students in class 6D was equal to 2/7 of the remaining students. Into semester II, the number of good students increased by 8 students ( the number of students of the class was unchanged), so the number of good students became 2/3 of the rest. How many good students of class 6D were there in semester I ?

Ai làm nhanh mà đúng, mình tích cho !

#Toán lớp 6

0

NB

Nguyễn Bá Đại Thắng

10 tháng 7 2015

The ratio of the number of girl students to the number of boy students in a class is 3: 5 and the number of boy students is 12 students more than the number of girl students. There are...students in this class

#Toán lớp 5

0

NT

Ngô Thu Hương

29 tháng 2 2016

There are 48 students in a class. The ratio of the number of the girl students to the number of boy students is 1: 3. How many girl students are there in the class?
Answer: There are...... girl students.

#Toán lớp 5

0

PL

PHONG LÊ NGỌC

23 tháng 9 2023

Class 5A has 8 more students than class 5B. The number of students of class 5A and class 5B are in the ratio of 9 : 7. How many students are there in class 5B?

#Toán lớp 5

2

KV

Kiều Vũ Linh

23 tháng 9 2023

The number of students of class 5B is:

8 : (9 - 7) × 7 = 28 (students)

The number of students of class 5A is:

8 : (9 - 7) × 9 = 36 (students)

Đúng(1)

PL

PHONG LÊ NGỌC

23 tháng 9 2023

mn ơi mik ko bt xem đáp án ở đâu, mn chỉ mik với

Đúng(0)

D

Dracula

26 tháng 1 2016

There are 48 students in a class. The ratio of the number of the girl students to the number of boy students is 1: 3. How many girl students are there in the class?

#Toán lớp 5

8

TC

trang chelsea

26 tháng 1 2016

kho....................wa..................troi.......................thi.....................ret.................lanh................wa..................tich............................ung.........................ho..............minh......................cho....................do....................lanh

Đúng(0)

BT

Bùi Thị Như Bình

26 tháng 1 2016

viết bằng tiếng việt đi

Đúng(0)

KC

không có tên

27 tháng 4 2016

There are 48 students in a class. The ratio of the number of the girl students to the number of boy students is \(\frac{1}{3}\). How many girl students are there in the class?

#Toán lớp 5

2