Sửa lại đề nhé bạn, mình không hiểu gì hết!

sửa lại đề đi bn

Chắc ý bạn là : 30 - x = 4 x 5.

                          30 - x = 20

                                 x = 30 - 20

                                 x = 10.

Hi vọng đó là ý của bạn.

                    

                     

                     

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Trung bình 1 xe tải lớn chở được :

17 : 4 = 4,22 ( tấn hàng )

Trung bình 1 xe tải nhỏ chở được :

11,4 : 5 = 2,28 ( tấn hàng )

Trung bình 1 xe tải lớn chở được hơn trung bình 1 xe tải nhỏ :

4,22 - 2,28 = 1,94 ( tấn hàng )

Đ/S : 1,94 tấn hàng

Chúc bạn học tốt

Trung bình 1 xe tải lớn chở được số tấn hàng là:

17:4=4,25<tấn hàng>

Trung bình 1 xe tải nhỏ chở được số tấn hàng là:

11,4:5=2,28<tấn hàng>

Trung bình 1 xe tải lớn chở được hơn xe tải nhỏ số hàng là:

4,25-2,28=1,97<tấn hàng>

Đáp số:1,97 tấn hàng

lam gop duoc ko

 

3(x+z)(y+z)(x+y)

a: \(A=9x^4y^2\cdot\dfrac{8}{27}z^6\cdot\dfrac{-1}{2}xyz^3=-\dfrac{4}{3}x^5y^3z^9\)

b: Hệ số là -4/3

Phần biến là \(x^5;y^3;z^9\)

Bậc là 17