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The perimeter of the figure:
4 + 4 + 4 + 6-4 + 6 + 6 + 6 = 32 (cm)
Answer: 32 cm

5 tháng 2 2016

ĐS: 30 đó bạn. Ta chỉ cần tìm số lớn nhất là được. Ủng hộ nha.

Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)Question 1:A classroom is 6.5 meters long and 4.2 meters wide. What is its area?  Answer: Its area is ................................ (Write your answer by decimal in the simplest form)Question 2:The area of the trapezoid below is  .........................Question 3:What is 50% of 824?Answer: .........................................Question 4:The...
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Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)

Question 1:
A classroom is 6.5 meters long and 4.2 meters wide. What is its area? 
 Answer: Its area is ................................ ?$m^{2}$
(Write your answer by decimal in the simplest form)

Question 2:
The area of the trapezoid below is  .........................?$cm^{2}$
2015.24.png

Question 3:
What is 50% of 824?
Answer: .........................................

Question 4:
2015.25.png
The perimeter of the circle is ...........................cm
(Write your answer by decimal in the simplest form)

Question 5:
45% of M is 72. The value of M is ............................

Question 6:
A car traveled at a constant speed for 5 hours, covering a total distance of 301km. How far did the car travel for one hour? 
(Write your answer by decimal in simplest form)
Answer: .............................

Question 7:
The perimeter of a rectangular land is 90m. Its length is 7m longer than its width. The area of this land is  ..................?$m^{2}$

Question 8:
?$7%20\frac{1}{5}=\frac{m}{5}+%20\frac{27}{5}$
The value of m is ..........................

Question 9:
Anna multiply together the following numbers
2015.28.png
How many zeros are there at the end of the product? 
 Answer: There are ................... zeros.

Question 10:
If  ?$\frac{3}{7}%3E\frac{2}{n}%3E\frac{3}{8}$and n is a natural number then n = ..........................

2
14 tháng 10 2015

3)=412

4)21,98

5)32,4

11 tháng 8 2016

Question 1:  27,3

Question 2: 18

Question 3:  412

Question 4:  21,98 cm

Question 5: M=32,4

Question 6: 60,2

Question 7: 494

Question 8: m=9

Question 9: 4 zeros

Question 10: n=5

16 tháng 5 2016

4 ) S = 18 cm2

6 ) x = 20 cm

Vậy thôi nhick mik làm tiếp

16 tháng 5 2016

4) 18 cm2

6) 20 cm

24 tháng 9 2017

làm xong chắc đến tối

24 tháng 9 2017

Đây là " Giúp tôi giải TOÁN " chứ không phải " Giúp tôi giải TIẾNG ANH " nha bạn!

Fill in the blank with the correct number Question 1:ABC and RTS are similar triangles.The value of x is  Question 2:If x<0 and 5x+8+|3x|=0 then x= Question 3:I am a multiple of 70 between 400 and 600. My tens digit is odd. Who am I?Answer:  Question 4:There are two parallel lines in the figure. What is the value of x?  Answer: x =  Question 5:Each of the 37 students in the grade 8 at a school has one dog or one cat or both a dog and a cat. Twenty students have a dog and 24 students...
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Fill in the blank with the correct number
 
Question 1:
8-gb-1-3.png

ABC and RTS are similar triangles.
The value of x is 
 
Question 2:
If x<0 and 5x+8+|3x|=0 then x=
 
Question 3:
I am a multiple of 70 between 400 and 600. My tens digit is odd. Who am I?
8-gb-1-1.png
Answer: 
 
Question 4:
There are two parallel lines in the figure. What is the value of x? 
8-gb-1-2.png
 Answer: x = 
 
Question 5:
Each of the 37 students in the grade 8 at a school has one dog or one cat or both a dog and a cat. Twenty students have a dog and 24 students have a cat. 
How many students have both a dog and a cat?
Answer:  students.
 
Question 6:
Mary is 24 years old. She is twice as old as Bella was when Mary was as old as Bella is now. 
How old is Bella now?
Answer:  years.
 
Question 7:
Jane draws a circle and a triangle on each page of her booklet, and near each drawing she writes the number of common points of the circle and the triangle.
How many different numbers can she write?
Answer:  numbers
 
Question 8:
How many different real numbers satisfy the following equation?
?$x+x=x\times%20x$ 
Answer: 
 
Question 9:
There are 115 cars in a village of 26 families. Each family has either 4 or 5 cars. 
How many families have 4 cars? 
 Answer:  families.
 
Question 10:
The area of trapezoid ABCD is 180 ?$cm^2$  .The altitude is 8 cm,AD is 10 cm,and BC is 17 cm.
What is AB,in centimeters?
8-gb-1-4.png
Answer:  cm.
0
17 tháng 7 2016

q9.

chu vi hình chữ nhật (hình vuông) là: 8*4=32(cm)

chiều dài hcn là: 32:2:(1+3)*3=12(cm)

chiều rộng hcn là: 32:2-12=4(cm)

dt hcn là:12*4=48(cm2)

đáp số:

17 tháng 7 2016

Q9:THE PERIMETER OF THE SQUARE IS ;

   8 X 4 = 32 ( CM ) 

SO , THE PERIMETER OF THE RECTANGLE IS 32 CM .

  HALF OF THE RECTANGLE IS :

   32 : 2 = 16 ( CM ) 

THE WIDTH OF THE RECTANGLE IS :

   16 : ( 3 + 1 ) X 1 = 4 ( CM )

THE LENGTH OF THE RECTANGLE IS :

   4 X 3 = 12 ( CM )

 ITS AREA IS :

    12 X 4 = 48 ( CM 2)

          ANSWER : 48 CM 2 

Q10: THE COST FOR 12 PEOPLE  TO EACH OF A MOVIE KET IS :

               5 X 12 = 60 ( DOLLARS )

      THE COST OF A SOFT DRINK IS :

             72 - 60 = 12 ( DOLLARS )

                    ANSWER: 12 DOLLARS