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3x+5x+6x=6x-5x

Posted by Kushagra Gupta 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Mabiya Ali 7 years, 2 months ago

14x=x 14x -x = 13x

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3/7 by 14/9

Posted by Aazad Kumar 7 years, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Divyansh Vashishtha 7 years, 2 months ago

3/7÷4/7 =3/7×7/4 =3/4

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Mabiya Ali 7 years, 2 months ago

3/7 / 4/7= 3/7 * 7/4 =3/4

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Try these of ch 11

Posted by Sakshi Gupta 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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Prove that a to the power zero is equal to one

Posted by Rishav Raj 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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The area of rhombus is 28m square if its perimeter is 28m , find its altitude

Posted by Yashaswi Tripathi 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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Two cubes have volume in the ratio 1 :27 the the ratio of the area of the faces of one that of another

Posted by Srashti Jadon 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Aryan Pachouri 7 years, 2 months ago

9:1

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X₹

Posted by Ruchika Bajaj 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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Square root of 5098

Posted by Neha Sharma 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Rajendra Prasad Garg 7 years, 2 months ago

The last digit is 8 so there cannot be a square root (perfect)

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If each side of a triangle is doubled find the ratio of area of new triangle thus formed and given triangle

Posted by Mansi Mansi 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 7 years, 2 months ago

Let a,b,c be the sides of the triangle.
Perimeter 2s = a + b + c
Semi-perimeter, s = (a+b+c)/2
Using Heron's formula:
Area of the triangle A = √s(s−a)(s−b)(s−c)
Now, if the sides are doubled: 2a, 2b, 2c
Let s' be the semi-perimeter.
2s' = 2a + 2b + 2c
s' = a + b + c
or s' = 2s
Area of the triangle, A' = √s′(s′−2a)(s′−2b)(s′−2c)
A' = √(2s)(2s−2a)(2s−2b)(2s−2c)
A' = √24s(s−a)(s−b)(s−c)
A' = 4√s(s−a)(s−b)(s−c)
A' = 4A
A':A = 4:1
Ratio of area of the new triangle and old triangle is 4:1

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3/7(-6/11)+(-8/21)+5/22

Posted by Sayant Sharma 7 years, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Sahil Yadav 7 years, 2 months ago

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Sayant Sharma 7 years, 2 months ago

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I bought 2 apples in 10 rupees. The cost of one apple is.

Posted by Sujeet Sharma 7 years, 2 months ago

CBSE > Class 08 > Mathematics

4 answers

Kaushlendra Singh 7 years, 2 months ago

One apple=₹10/2 Cost of one apple is=₹5

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Sahil Yadav 7 years, 2 months ago

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Rashi Sureka 7 years, 2 months ago

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Richa Shree 7 years, 2 months ago

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Csa of frustum

Posted by Kunal Sharma 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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2square

Posted by Aman Jaiswal 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Kunal Sharma 7 years, 2 months ago

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A watch dealer pays 10 %custom duty on a watch which cost rupees 500 abroad. For how much should much he mark it if he desires to make a profit of 20 %after giving a discount of 25%to buyer?

Posted by Santosh Sharma 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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400÷6

Posted by Harsh Bhirani 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Shivani???? Meher 7 years, 2 months ago

66.66

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26547×76=?

Posted by Nairita Nath Nath 7 years, 2 months ago

CBSE > Class 08 > Mathematics

4 answers

Kunal Sharma 7 years, 2 months ago

2017572

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Vaishnavi Poste 7 years, 2 months ago

26547×76=2017572

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Kastu Shukla 7 years, 2 months ago

2017572

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Fiza Pv 7 years, 2 months ago

2017572

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A b c d e f g h i j k l m n o p q r s t u v w x y z

Posted by Manas Agrawal 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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150%88(100)

Posted by Nandu Bhat 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Rasmeet Singh Saini 7 years, 2 months ago

Answer 6200

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A letter is chosen from the word 'PROBABILITY' . What is the probability that it is a vowel

Posted by Rock Do 7 years, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Rasmeet Singh Saini 7 years, 2 months ago

Total letters in the word ‘triangle’ = 8 Number of vowels in the word = 3 ( a, e, i, o, u are vowels and the rest are consonants) So, probability of getting a vowel = 3/8.

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Richa Shree 7 years, 2 months ago

4 /11

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Write the following numbers in generalised form : (1) 25 (2) 73 (3) 129 (4) 3o2

Posted by Geet Katre Geet Katre 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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(X+5)2

Posted by Aaru Jain 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 7 years, 2 months ago

(a + b)² = a² + 2ab + b²
(x + 5)² = x²+ 2(5)x + 5²
= x² + 10x + 25

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100-(X-5)

Posted by Sushant Kumar 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Rock Do 7 years, 2 months ago

100-X+5=105-X

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Ankita's grandfather's age is four times her age. Her grandfather is also 42 yes world that her. Find the present age of her grandfather.

Posted by Sharaneeswari P 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Rajendra Prasad Garg 7 years, 2 months ago

Let Ankita's age be x Then her grandfather's age is 4x So , according to the question, 4x=x+42 4x-x=42 3x=42 x=42/3 x=14 years Then 4x=4×14 =56 years So , grandfather's present age is 56 years

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(lm+l)+m+1

Posted by Ayush Dhiman 7 years, 2 months ago

CBSE > Class 08 > Mathematics