= 25,26

tào lao

Đáy bé là:

     48 . 3/4 = 36 (m)

Chiều cao là:

     (48 + 36) : 2 = 42 (m)

a) Diện tích hình thang là :

      42 . 42 = 1764 (m2)

b) Đổi : 1764 m2 = 0,1764 ha

 Thửa ruộng đó thu nhập là :

      0,1764 . 45 = 7,938 (tạ)

Tỉ số giữa cây cam và cây bưởi là :

120:150=0,8=80%

       Đ/s 80%

a) (x + 1,2) : 2,5 = 5                                                                             

      x + 1,2          = 5 . 2,5

      x + 1,2          = 12,5

      x                   = 12,5 - 1,2

      x                   = 11,3 

Vậy x = 11,3  

\(b)4,25.x=53,38\)

\(x=53,38:4,25\)

\(x=12,56\)

Vậy x = 12,56

\(c)x.\frac{1}{2}+\frac{3}{4}=1\)

\(x.\frac{1}{2}=1-\frac{3}{4}\)

\(x.\frac{1}{2}=\frac{1}{4}\)

\(x=\frac{1}{4}:\frac{1}{2}\)

\(x=\frac{1}{2}\)

Vậy \(x=\frac{1}{2}\)

\(d)\frac{2}{7}+\frac{5}{7}:x=5-\frac{1}{7}\)

\(\frac{2}{7}+\frac{5}{7}:x=\frac{34}{7}\)

\(\frac{5}{7}:x=\frac{34}{7}-\frac{2}{7}\)

\(\frac{5}{7}:x=\frac{32}{7}\)

\(x=\frac{5}{7}:\frac{32}{7}\)

\(x=\frac{5}{32}\)

Vậy \(x=\frac{5}{32}\)

e) x - 2448 : 24 = 102

    x - 102           = 102

    x                    = 102 + 102

    x                    = 204

Vậy x = 204

là 143

Đáp án :

= 143

# Hok tốt

bạn lào lm dc bài này mình sẽ có bí mật

Kelly: Where did you go last weekend?

Jack: I went  to my hometown.

Kelly: How did you get there?

Jack: I went by coach

Kelly: Where did you go last weekend?

Jack: I went to my hometown.

Kelly: How did you get there?

Jack: I went by car.

         Đổi 1h30p=1,5h

Vận tốc của thuyền khi ngược dòng là:

         22,6-2,2=20,4(km/h)

Độ dài quãng sông AB là:

        20,4x1,5=30,6(km)

                 Đáp số:30,6km

Read and complete:

bring  about                  designed                      entertaining                 include                  through

events                     in addition to                          make                     means                   pictures

     Television is one of our most important (1) ____mean ____ of communication. It brings (2) __pictures_____ and sounds from around the word into millions of homes. A person with a television set can sit in his house and watch the President (3) ___make______ a speech or visit a foreign country. He can see a war being fought and watch statesment try to (4) ___bring_____ peac, places and things in far away lands.

      (6) ___ in addition to   ______ all these things, television brings its viewers a steady streamof programs that are (7) ____ designed  _____ to entertain. In fact, TV provides many more (8) __entertaining______ programs than any other kinds. The programs (9) _____include____ action-packed dramas, light comedies, sporting (10) ____events_____, and motion pictures.

Xong rồi thì các bn dịch giúp mik lun nha! Mik cảm ơn!!!!!!!