calculate: 1 2/5 x 3 5/7 = A/5 The value of A is?

K

Khách

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NH

Nguyễn Huy Hoàng

15 tháng 8 2015 - olm

calculate: 1 2/5 x 3 5/7 = A/5 The value of A is?

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1

NN

Nguyễn Ngọc Quý

15 tháng 8 2015

\(1\frac{2}{5}\times3\frac{5}{7}=\frac{A}{5}\Leftrightarrow\frac{7}{5}\times\frac{26}{7}=\frac{26}{5}\)

Vậy A = 26

Các câu hỏi dưới đây có thể giống với câu hỏi trên

DK

Dragoon Knight

2 tháng 4 2015 - olm

Question 1:Compare: Question 2:Compare: A = and B = Answer: A BFill in the blank with the suitable number Question 3:Calculate: The value of A is Question 4:Calculate: The value of A is Question 5:Find two consecutive even numbers if the first number is of the second number.Answer: The second number is Question 6:There are 49 students in a class. Boy students are the number of girl students. There are girl students in this class. Question 7:How many natural...

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2

TN

Trịnh Nguyễn Tuấn Anh

9 tháng 4 2015

I'm sorry to say that I don't see any mathematical expressions. And you should translate your questions into Vietnamese so all people can answer them.

NH

Nguyễn Hà Linh

6 tháng 8 2016

I am very sorry but I cannot see any numbers to answer your questions

DK

Dragoon Knight

2 tháng 4 2015 - olm

Fill in the blank with the suitable numberQuestion 1:There are 49 students in a class. Boy students are the number of girl students. There are girl students in this class.Question 2:Calculate: The value of A is Question 3:Calculate: The value of A is Question 4:Jessica is 8 years old. Her grandmother is of her age. How old is Jessica's grandmother?Answer: years old.Question 5:If the sum of denominator and numerator of a fraction is 52 and the denominator is 18 units more than...

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1

DM

Đỗ Minh Tú

2 tháng 4 2015

sir, this is the place to learn math, not english offline. If you want to learn English is very wed page: ioe.vn

A

Assassin

30 tháng 3 2017 - olm

Caculate: 9108 : 36 = Câu hỏi 2:Calculate: 25 x 148 = Câu hỏi 3:If 2010 < p x 3 < 2014 then p = Câu hỏi 4:The area of a retangle is 45cm2 and its width is 5cm. its length is cmCâu hỏi 5:Find x if: 819 + x = 4736, x = Câu hỏi 6:If the area of a retangle is 1350 cm2 and the length is 45cm then the perimeter of that retangle is cmCâu hỏi 7:The average of all the numbers from 1 to 99 isCâu hỏi 8:If 1/100 of Mom's Salary is $23, then her salary is $Câu hỏi 9:Calculate:...

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1

LA

Liv and Maddie

30 tháng 3 2017

1 ) 253

2) 3700

3) 671

4) 9 cm

5) 3917

6) 30cm

7) 50

8) 2300

9) 184

10) 2014

DN

Đào Ngọc Minh Thư

20 tháng 10 2015 - olm

1/- Compare : A = (1+3+5+...+139)/70 and B = (2+4+6+...+138)/69

Answer : A......... B

2/- In the follwing figure , ABED and BCFE are square . If the perimeter of the rectangle ACFD is 54cm . Then its area is :

3/- Calculate : 4/16 + 6/15 + 8/14 + 3/7 + 3/5 + 3/4 = ?

( Write your answer in the simplest form . )

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1

NT

Nguyễn Trang

20 tháng 10 2015

1/ A=B

2/ The rectangle ACFD's area is 162cm^2

3/ 3

L

Linh

11 tháng 6 2015 - olm

If 5 x a - b - c = 36 and b = c = a/2, what is the value of a?

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0

TL

Trần Lâm Thiên Hương

8 tháng 11 2015 - olm

If n is a natural number and n<12.03<n+5 then the greatest value of n is
If n is a natural number and n<12.03<n+5 then the smallest value of n is

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2

LC

Lê Chí Cường

8 tháng 11 2015

Ta thấy: n<12.03<n+5

=>n<36<n+5

=>n<36

36<n+5

=>31<n

=>31<n<36

=>n=(32,33,34,35)

=>Giá trị lớn nhất của n là 35

Giá trị lớn nhỏ của n là 32

NA

Nguyen Anh Ngoc

19 tháng 8 2016

giá trị lớn 35

giá trị nhỏ 32

T

Takao

8 tháng 11 2017 - olm

Lesson 1: Trapezoid sheet has a large bottom 2.8dm, baby bottom 1.6dm, height 0.8dm.a) Calculate the area of the cardboard?b) Cut a quarter of the area. Calculate the area of the cardboard remaining?Lesson 2: ABCD rectangle with DC length = 27cm, AD = 20.4cm. E is a point on AB. Calculate the area of the triangle ECD?Lesson 3: (HSKG): A trapezoidal field with a baby bottom 26m, the bottom is 8m lower than baby, the bottom is 6m lower. Average 100m2 harvested 70.5 kg paddy. How much is the field...

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6

TM

thai my phung

8 tháng 11 2017

i don't no

please write Vietnamese

T

Takao

8 tháng 11 2017

I can't

MP

Mô phật Mô phật

18 tháng 12 2016 - olm

Exam number 1: Đi tìm kho báuQuestion 1:185,4 - 5,36 = ............Which answer is correct? a. 180,04b. 18,004c. 1,318d. 13,18Question 2:Calculate: 124,7 : 100 + 45,18 = ..............a. 46,427b. 47,426c. 46,247d. 47,246Question 3:Look at these numbers 5,586 0,293 0,675 5,595Two numbers in the box have a sum of 6,261 are .............a. 5,586 and 0,293b. 5,586 and 0,675c. 5,595 and 0,293d. 5,595 and 0,675Question 4:Brick is $28,25 per...

Exam number 1: Đi tìm kho báu

Question 1:
185,4 - 5,36 = ............
Which answer is correct?

a. 180,04
b. 18,004
c. 1,318
d. 13,18

Question 2:

Calculate: 124,7 : 100 + 45,18 = ..............

a. 46,427
b. 47,426
c. 46,247
d. 47,246

Question 3:

Look at these numbers
5,586 0,293 0,675 5,595
Two numbers in the box have a sum of 6,261 are .............

a. 5,586 and 0,293
b. 5,586 and 0,675
c. 5,595 and 0,293
d. 5,595 and 0,675

Question 4:

Brick is $28,25 per 25kg. How much is 350kg of brick?
Answer:

a. $395,5
b. $9887,5
c. $359,5
d. $8987,5

Question 5:

If X is a natural number and 0,5 x X > 8,3 then the smallest value of X is ............

Exam number 2: Choose 2 consecutive cells which have the same or equal value. (Tìm cặp bằng nhau)

Answer:
(1) = ......; (2) = ......; (3) = .......; (4) = .....; (5) = ......; (6) = ......; (7) = ........; (8) = ......; (11) = ......; (15) = .......

Nhập số thứ tự của các ô vào chỗ (....) cho thích hợp để được các cặp giá trị bằng nhau.

Exam number 3: Fill in the blank with the suitable number (Note: write decimal number with the comma between number part and fraction part. Ex: 0,5)

Question 1:
Find x such that 2,89 < x < 11,01 and x are even natural numbers.
Answer: ................

(Write numbers in the order from smallest to greatest and use ";")

Question 2:

2,3m + 6,8m = ......... dm.

Question 3:

7m²4dm²= ........... cm².

Question 4:

123004,64 : 10000 = ...............

Question 5:

15% of 370kg = .................g

Question 6:

2m²3dm²+ 1m²35cm²= ........... cm².

Question 7:

The perimeter of the star equals the perimeter of the regular hexagon. Each side of the hexagon is 16cm long. Each side of the star is ........... cm long.

Question 8:

Jane bought jelly beans. She gave 9/11 of them for Jack. If Jane kept 36 jelly beans then she bought .......... jelly beans in total.

Question 9:

Tina works 17 hours a week (Monday to Friday). Last week she worked 4,5 hours on Monday; 5 hours on Tuesday; 2,2 hours on Wednesday and 1,5 hours on Thursday. She worked ......... minutes on Friday.

Question 10:

The value of 2,73 + 4,23 + 5,73 + 7,23 + 8,73 + 10,23 + 11,73 + 13,23 +14,73 + 16,23 + 17,73 is .....................

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4

ZZ

๖ۣۜҨž乡яσяσиσα zσяσღ

18 tháng 12 2016

Exam 1:

Qestion 1: a

Qestion 2: a.

Qestion 3: b.

Qestion 4: a.

Qestion5: 16,8

Exam 2:

Qestion1 : 3;4;5;6;7;8;9;10

Qestion 2: 91

Qestion 3 : 74000

Qestion 4 : 12,300464

Qestion 5 : 55500

Qestion 6 : .../

Các câu còn lại bn tự giải nha mk bận

*** mk nha mọi người

S

sakura

18 tháng 12 2016

Câu 1 : 185,4 - 5,36 = 180,04

Câu 2 : 124,7 : 100 + 45,18

= 1,247 + 45,18 = 46,427

Câu 2 : 2,3 m + 6,8 m = 91 dm

Câu 3 : 7 m² 4 dm² = 70000 cm² + 400 cm²

= 70400 cm²

Câu 4 : 123004,64 : 10000 = 12,300464

Câu 5 : 15% của 370 kg là :

370 x 15 : 100 = 55,5 ( kg )

55,5 kg = 55500 g

Câu 6 : 2 m² 3 dm² + 1 m² 35cm²

= 23000 cm² + 10035 cm²

= 33035 cm²

NN

Nguyễn Ngọc Thái Vy

4 tháng 3 2018 - olm

Choose the correct answer. Calculate: 3/4 x 5/4 = ? 8/4 15/16 15/4 8/16 Câu hỏi 2: Calculate: 1/2 - 2/5 + 5/3 = .... 49/30 52/30 53/30 51/30 Câu hỏi 3: Alice's mother is now four times as old as she. Four years ago, her mother was thirty years more than her. How old is Alice now? 12 6 10 8 Câu hỏi 4: Choose the correct answer. Which of the following fractions is greater than 1? 2/3 7/9 11/12 14/8 Câu hỏi 5: Which fraction is equal to 51/34? 17/11 3/4 102/48 9/6 Câu hỏi 6: Fill in...

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