Let x be the number of the chickens
45 -x is the number of the rabbits
We have: 2x + (45-x)4 = 140
And then, we solve for x
2x + 180 - 4x = 140
180 - 2x = 140
2x= 40
x= 20
Therefore, the number of rabbits: 45 - 20 = 25
Rabbits: 25
Chickens: 20
there are 15 chickens,30 rabbits
there are 20 chickens and 25 rabbits
Peter has a total of 100 chickens and rabbits on his farm. If the animals have 260 legs altogether, how many chickens are there on the farm?
Cau hoi cua cac cau tra loi sau la gi :
1 :I have many pens
2 :Her teacher has a big car
3:Dang has one sister
4:You have a red pen
5:They have new bikes
6:She has school bag
7:It has four legs
8:Jones have many
9:His brothers have rabbits
10:Those tables have ten legs
43. cup / like / tea / of / you / would / a?
->……………………..……………….……………………………………………………
44. evening / are / Thuy / you / how / Miss/good.
->……………………..……………….……………………………………………………
45. there / house / many / our / how / cans of food / are / in?
->……………………..……………….……………………………………………………
46. two / one / are / cat / dogs / house / and / his / there / in.
-> …………………………………………………………………………………………...
47. face and / eyes / big / Lan / round / black / a / has.
-> …………………………………………………………………………………………
Viết lại nghĩa sao cho đúng
1: What is the price of a bowl of noodles?
How much................
2: This box has twelve packets of tea
There.........................
3: How many bananas would you like?
How many bananas do...................
4: Bi and Fifi fly to HaNoi
Bi and Fifi travel...............
5:The bakery is to the left of the house
My house...................
6:Mr. Brown has a son, Trung
Mr. Brown...................
7: Trang is riding her bike to school
Trang is going................
8:Does your school have over eight hundred students?
Are...................
9:This exercise is very dificult and I can’t do it
This exercise is too...................
Tìm lỗi sai và sửa
Is Hung and his brother working in the garden now?
..................
What about play tennis now?
..................
I’m going stay with my uncle and aunt.
..................
I want talk to her because she is very nice.
..................
They are going to talking some photos at the beach.
..................
How many is a kilo of rice?
..................
Thêm từ vào câu
They/take/vegetable/market/the moment
............................
You/drive/work/or/go/bus
............................
There/be/small park/front/linh/house
............................
Our/apartment/have/four rooms/and/seventh floor
............................
Brother/live/Paris/and/have/bakery/there
............................
Make questions for the underlined words
I’d like a cup of coffee
............................
She needs two kilo of rice
............................
My sister plays badminton when it’s cool
............................
My classmates sometimes go to the zoo in the spring
............................
Nam is going to visit the zoo tomorrow.
............................
.........................................
It's big and modern
A how many houses do you have ?
B Is your house big?
C what ' s your house like?
D how many bedroom are there in your house?
counting problems
competency:problem solving ability
1,from 4 types of protein and 3 types of bread,how many sandwich can be make with a protein and a bread?
2,there are 5 hats,6 bracelets and 3 belts.How many ways can Bella put on these accessries with a hat, a bracelet and a belt?
3,angie has 8 tops,5 pairs of short and 3 skirts.How many way can she get dressed with a top and a pair of shorts or one skirt.
4,there are 15 types of pizza topping.How many kinds of double pizzas are there if in a double pizza you choose 2 toppings at once?
Each sentence has a mistake. Find and correct it.
1. What do your father do ?
2. How many stereo are there in the room ?
3. My father is a teacher and my sister is teachers too.
4. Does she lives in Ha Noi.
Choose the best answer for each following sentence (Chọn đáp án đúng)
a. How ( many, old, do ) are you? - I'm eleven.
b. There is ( a table, two tables, three tables ) in our classroom .
c. She ( am, is ,are ) a nurse.
d. ( What, Who, How ) does your father do? - He is a farmer.
e. Where do you live? - I live (in, on , at, of ) Tan Linh
Tony has 40 marbles. 70% of them are red. How many red marbles does Tony have?
