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3 tháng 2 2016

2,25 = 9/4

Hiệu số phần bằng nhau là:

9 - 4 = 5 (phần)

Số bé là:

2,25 : 5 x 4 = 1,8

Đs...

3 tháng 2 2016

2,25=9,4

số bé là

2,25 : 5 x 4 = 1,8

đ/s = 1,8

1 tháng 1 2017

Câu hỏi 8:

Đổi: 2,25 = \(\frac{9}{4}\)

Số lớn là:

2,25 : ( 9 - 4 ) x 9 = 4,05

=> Số bé là:

4,05 - 2,25 = 1,8 

đ/s : 1,8

Câu hỏi 9:

Số tiền vốn là:

7 520 000 : ( 100 - 6 ) x 100 = 8 000 000 (đồng)

=> Số tiền bị lỗ là:

8 000 000 - 7 520 000 = 480 000 (đồng)

đ/s: 480 000 đồng

1 tháng 1 2017

câu 8 :số bé là 1,8

câu 9 : số tiền bị lỗ là 450000 đồng

19 tháng 4 2017

Ta có : 2,25 = 9/4

Hiệu số phần bằng nhau là:

9 - 4 = 5 (phần)

Số bé là:

( 2,25 : 5) x 4 =1,8

Đáp số: 1,8

19 tháng 4 2017

Ta có: \(2,25=\frac{9}{4}\)
Hiệu số phần bằng nhau là

9-4=5 phần

Số bé là 
2,25:5x4=1,8
số lớn là

2,25:5x9=4,05

Đ/s:...

22 tháng 7 2016

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22 tháng 7 2016

Đổi : 2,25 = \(\frac{9}{4}\)

Ta có sơ đồ :

Số bé : l-----l-----l-----l-----l  2,25

Số lớn :l-----l-----l-----l-----l-----l-----l-----l-----l------l

Theo sơ đồ , hiệu số phần bằng nhau là :

       9 - 4 = 5 ( phần )

Số bé là :

  2,25 : 5 x 4 = 1,8

 Đáp số : 1,8

28 tháng 2 2016

2,25 = 9/4

Hiệu số phần băng nhau là: 9 - 4 = 5 (Phần)

Số bé là: 2,25 : 5 x 9 = 4,05 

25 tháng 2 2016

tỉ số=2.25=9/4

Số bé là:

2.25:(9-4)x4=1.8

Đáp số:1.8

25 tháng 2 2016

ti so la 2,25/1

hieu so phan bang nhau la 1,25

vay so be la

2,25:1,25x1=1,8

26 tháng 2 2016

so be la 1,8 h minh nha ban 

26 tháng 2 2016

X-2.25Y=0

va X-1=2.25

giaipt X=4.05

          Y=1.8

19 tháng 7 2016

2,25 = $\frac{9}{4}$94 

Hiệu số phần bằng nhau là:

9 - 4 = 5 phần

Số bé là:

2,25 : 5 x 4 = 1,8

Đáp số : 1,8

2,25 = \(\frac{9}{4}\)

Hiệu số phần bằng nhau là:

9 - 4 = 5 phần

Số bé là:

2,25 : 5 x 4 = 1,8

Đáp số : 1,8

3 tháng 1 2017

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3 tháng 1 2017

de ma 13 do