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Exercise 6.3

Posted by Adith E Jayaprakash 5 years, 8 months ago

CBSE > Class 08 > Mathematics

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Find the square root of 100and169by reapeated subtraction

Posted by Adith E Jayaprakash 5 years, 8 months ago

CBSE > Class 08 > Mathematics

2 answers

Tejaswini Vashishtha 5 years, 8 months ago

√100 by Repeated subtraction: 1. 100 - 1 = 99 2. 99 - 3 = 96 3. 96 - 5 = 91 4. 91 -7 = 84 5. 84 - 9 = 75 6. 75 - 11 = 64 7. 64 - 13 = 51 8. 51 - 15 = 36 9. 36-17=19 10. 19 - 19 = 0 We get 0 at 10th step. Hence,10 is the square root of 100. √100 = 10 √169 by Repeated subtraction: 1. 169 - 1 = 168 2. 168 - 3 = 165 3. 165 - 5 = 160 4. 160 - 7 = 153 5. 153 - 9 = 144 6. 144 - 11 = 133 7. 133 - 13 = 120 8. 120 - 15 = 105 9. 105 - 17 = 88 10. 88 - 19 = 69 11. 69 - 21 = 48 12. 48 - 23 = 25 13. 25 - 25 = 0 We get 0 at 13th step. Hence,13 is the square root of 169 √169=13 ========================================================== Hope this will help you.....

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Adith E Jayaprakash 5 years, 8 months ago

Ans

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Factories 16 (x+y) -25 (x- 3y)

Posted by B. Pritiparna 5 years, 8 months ago

CBSE > Class 08 > Mathematics

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Multiply the following binomial and verify the result of the given values (1/5ab-3) (1/2ab-5) ; a=1 , b=-1 Find it with L.H.S and R.H.S

Posted by Kanan Minhas 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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Properties of the group are not followed in substraction of rational numbers

Posted by Hira Gandhi 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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Posted by Jwalant Bhatt 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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2x+49=59x ×95/105

Posted by Jwalant Bhatt 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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Simplify -:3(5x-6)-2(9x-2)=29

Posted by Giri Kumari Sweety 5 years, 8 months ago

CBSE > Class 08 > Mathematics

2 answers

Akanshi Gupta 5 years, 8 months ago

x = 43/-3

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Rani Swain 5 years, 8 months ago

This question is very simple

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Rohans father age is 4 times than Rohan after 5 years his fathers age is three times rohaan what is his present age

Posted by Sumit Patil 5 years, 8 months ago

CBSE > Class 08 > Mathematics

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The perimeter of a rectangle is 15cm and its width is 3 1/4cm.Find its length

Posted by Giri Kumari Sweety 5 years, 8 months ago

CBSE > Class 08 > Mathematics

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Simplify-:3(5x-2)-2(9x-2)=29

Posted by Giri Kumari Sweety 5 years, 8 months ago

CBSE > Class 08 > Mathematics

2 answers

Giri Kumari Sweety 5 years, 8 months ago

Thanks Yogita Ingle

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Yogita Ingle 5 years, 8 months ago

3(5x-2)-2(9x-2)=29

15x - 6 - 18x + 4 = 29
-3x - 2 = 29
-3x = 29+ 2

-3x = 31

x = -31/3

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In rational numbers 2/5 and 6/3

Posted by Dhikshayaa Natraj 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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Find the smallest square number which is exactly divisible by 10,12,25

Posted by Vridhi Jain 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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How is 1/7=0.1428 1/6=0.1667

Posted by Yashila Sharma 5 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Prince Behera 5 years, 8 months ago

Who visit your home

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Find the measure of each exterior angle of regular polyon of 1) 8sidesii) 5 sides

Posted by Garima Jain 5 years, 8 months ago

CBSE > Class 08 > Mathematics

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What is 3666*46585566553696553

Posted by Pearl Tahilramani 5 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Sia ? 4 years, 11 months ago

1.70782687e20

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Multiply the following binomial and verify the result for the given values (3y-8) (5y-1) for x=0 & y=-2

Posted by Kanan Minhas 5 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Kanan Minhas 5 years, 8 months ago

Please tell it with L.H.S and R.H.S

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Calculate the following with properties. (a) -4/5 × 3/7 + 4/5 × 3/7

Posted by Sneha Dwivedi 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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46÷6

Posted by Piyush Patil 5 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

6569 Bharat Md 5 years, 8 months ago

the answer is 7.66

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(a/b)0=*

Posted by Mohammad Bilal 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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The multiplicative identity of rational number is

Posted by Mohammad Bilal 5 years, 8 months ago

CBSE > Class 08 > Mathematics

2 answers

6569 Bharat Md 5 years, 8 months ago

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Kiruthikaa Sri 5 years, 8 months ago

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(-3)-4 = ?

Posted by Gauri Jaali 5 years, 8 months ago

CBSE > Class 08 > Mathematics

5 answers

S Thakur 5 years, 8 months ago

-7

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Sanskriti Lodhi 5 years, 8 months ago

-7

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Sneha Dwivedi 5 years, 8 months ago

-7

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6569 Bharat Md 5 years, 8 months ago

-x-=+ so the answer is 12

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Yogita Ingle 5 years, 8 months ago

(-3)-4 = -3 - 4 = -7

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Mass of Mars is 6.42 x 10²⁹ kg and the mass of the sun is 1.99 x 10³⁰ kg . What is the total mass.

Posted by Ravi Singh 5 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Gaurav Seth 5 years, 8 months ago

Given : Mass of Mars kg and Sun is kg.

To find : The total mass?

Solution :

Mass of the Mars

Mass of the Sun

Total mass is

Therefore, The total mass is

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The diameter of the sun is 1.4x10⁹m and the diameter of the earth is 1.2756x10⁷m. compare their diameter by division.

Posted by Ravi Singh 5 years, 8 months ago

CBSE > Class 08 > Mathematics

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The size of an animal cell is 0.0000068m and the size of a plant cell is 0.000015m. find the ratio of the size of the plant cell to that of the animal cell.

Posted by Ravi Singh 5 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Gaurav Seth 5 years, 8 months ago

Given animal cell size=0.0000068

plant cell size=0.000015

Ratio=plant cell size/animal cell size

Ratio=0.000015/0.0000068

On multiplying and dividing by 10000000,we get

Ratio=150/68=75/34

Ratio=75: 34

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The diameter of the sun and the earth are 1.4x10⁹m and 1.275x10⁷m respectively. find the ratios of their diameter.

Posted by Ravi Singh 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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Expand the following in the usual form: (i) 0.20042×10^4

Posted by Smriti Singh 5 years, 8 months ago

CBSE > Class 08 > Mathematics

0 answers

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Pie chart

Posted by Arjun Singh Singh 5 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Sneha Dwivedi 5 years, 8 months ago

Pie chart is a circle chart . It represents data in a circular form. A circle graph shows the relationship between a whole and its part .It is divided into sectors Each sector visually represents an item in a data set to match the amount of the item as a percentage or fraction of the total data set.

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2+66/4×4-9(My friends solve this)

Posted by Yahiah Rahman 5 years, 8 months ago

CBSE > Class 08 > Mathematics