CBSE > Class 08 > Mathematics | CBSE Board | Homework Help

And bro rest of the question you google it.. and try to understand all the questions.. I hope you study hard and success in your life.. best of luck of your exam

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Khushi Deka 5 years ago

8. No, 1≠5 9.i don't know 10.k/6=42 11. 5×11=55 so the answer is 11 12. 1 13. 3 14. -1 15. 80

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Khushi Deka 5 years ago

God.. okay I'll solve. 1. Linear equation 2. One 3. ax + b = 0, a ≠ 0 or px = q, p ≠ 0 4. the equation remains undisturbed. 5. Noo 6. Nooo 7. x=4

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Rishi Jain 5 years ago

Fufud I'll

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ANSWER

4.52×50

Posted by Sanjith S 5 years ago

CBSE > Class 08 > Mathematics

3 answers

Jyoti Sharma 5 years ago

4.52 into 50 is 226 ans..

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Nihal Ruthala 5 years ago

226

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Lakshay Verma 5 years ago

226

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ANSWER

A square and a rectangular field with measurement as given in the figure have the same perimeter. Which field has a larger area

Posted by Tushar Kumar Das 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Gagan Brar 5 years ago

the side of square = 60 The breadth of rectangle =80 Length of rectangle =? Perimeter of square =4×Side 4×60 240 A.T.O The perimeter of square = the perimeter of rectangle So, the perimeter of rectangle=240 Perimeter of rectangle =2(L+B) 240/2= L+80 120 =L+80 120-80=L 40=L Area of square equals = side × side 60×60 3600 Area of rectangle = length × breadth 40×80 3200 Square field has larger area

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ANSWER

3(x-1)=8

Posted by Aniket Choudhary 5 years ago

CBSE > Class 08 > Mathematics

4 answers

Shivam Saini 5 years ago

3.66

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Gagan Brar 5 years ago

3× -3 =8 3×=8+3 3x = 11 x=11/3 x=3.66

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Vishnumaya R 5 years ago

3 is the answer

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Lucky Saini 5 years ago

3.66

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ANSWER

Multiplicative inverse of the 2-⁴ is

Posted by Saurav Ravsaheb Patil 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Pooja Raj Shekar 4 years, 11 months ago

1/2⁴

1Thank You

Lakshay Verma 5 years ago

1Thank You

ANSWER

Find the aera of circle whose radius 7cm

Posted by Vipra Narayanan 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Gagan Brar 5 years ago

Area of circle =πr^2 22 x 7x7 7 22x7 154

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Sakshi Mishra 5 years ago

Area of a circle = πr^2 Radius = 7cm Therefore area= 22/7× 7×7 = 22×7=154 Therefore area of the circle is 154cm sq.

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ANSWER

Add p(p-q), q(q-r), r(r-p)

Posted by Rahul Kashyap 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Pooja Raj Shekar 4 years, 11 months ago

p(p-q)+q(q-r)+r(r-p)=p²-pq+q²+qr+ r²-rp

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Snehitha Varma 5 years ago

p(p-q)+q(q-r)+(r-p) =p²-p-q+q²-q-r+r²-rp

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ANSWER

A man got 10% increase in hi salary. If his new salary is rupees 1,54,000 ,find his original salary.

Posted by Akshat Rajput 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Snehitha Varma 5 years ago

Percentage of increase=10% New salary=₹1,54,000 Let the original salary be x. New salary=Original salary 1,54,000=x(1+1/10) =1+10/100 =x+11/10 =x=1,54,000×10/11 x=1,40,000 Therefore, the original saley is 1,40,000 rupees.

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ANSWER

Find the square root 2.56

Posted by Akshat Rajput 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Mahek Bansal 5 years ago

1.6

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Lakshay Verma 5 years ago

1.6

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ANSWER

The sum of two positive integers is 120. The integers are in the ratio 2 : 3. Find the integers.

Posted by Waibhav Kumar 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Lucky Saini 5 years ago

48,72

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Anjana Sharma 5 years ago

Let the two integers be 2x and 3x 2x +3x=120 5x=120 X=120÷5 X=24 Now , 2x=2(24) =48 3x=3(24) =72 Therefore, the two integers are 48 and 72.

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ANSWER

1344

Posted by Waibhav Kumar 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Waibhav Kumar 5 years ago

One thousand three hundred and forty four

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ANSWER

The length of the shadow cost by another pole 10m 50cm high

Posted by Deepanshu Rajput 5 years ago

CBSE > Class 08 > Mathematics

3 answers

Pushkar Mor 5 years ago

500 cm

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Abhishek Maurya 5 years ago

Math

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Arjun Singh 5 years ago

500cm

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ANSWER

A football team won 10 matches outthe total number of matches of matches they played. If their win percentage was 40, then how many matches did they play in all ?

Posted by Akshat Rajput 5 years ago

CBSE > Class 08 > Mathematics

4 answers

Varsha Sharma 5 years ago

They played 25matchs

3Thank You

Sakshi Mishra 5 years ago

They played 25 matches

2Thank You

Manisha Lalchandani 5 years ago

Total number of matches are 25

2Thank You

Arjun Singh 5 years ago

25 matchs

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ANSWER

Factorize - (l+m)2- (l-m)2

Posted by Pratigya Kumari 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Mahek Bansal 5 years ago

[ a²-b² = (a+b) × (a-b) ] =(l+m × l-m) (l+m - l-m) = 2l × 2m = 4lm

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ANSWER

Using the given pattern and find the missing numbers

Posted by Farheen Farooq 5 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

(-4) to the power of 5 × (-4) to the power -10. evaluate

Posted by Kuheli Sarkar 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Mahima Chahal 5 years ago

(-4) raise to the power -5

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Sakshi Mishra 5 years ago

Using the law of exponents, we find that the answer is (-4)^-5 {a^m×a^n=a^m+n}

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ANSWER

Find the value of y. Y=4\5 (y+10)

Posted by Nitish Raj 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Mahima Chahal 5 years ago

40 is the value of Y

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Arjun Singh 5 years ago

10 Value of y

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ANSWER

Factorize: (2a+3)^2 - 9b^2

Posted by Studies Students 5 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

-6=3

Posted by Nikhath Khanum 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Manisha Lalchandani 5 years ago

-3

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Raghi Upadhyay 5 years ago

-3

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ANSWER

Find the ratio of speed of a cycle to the speed of scooter if speed of scooter is 30km/hr & speed of cycle is 15km/hr

Posted by Aradhya Dangi 5 years ago

CBSE > Class 08 > Mathematics

5 answers

Manjot Singh 5 years ago

0Thank You

?????? ????? 5 years ago

2:1

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Mahima Chahal 5 years ago

2:1

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Sakshi Mishra 5 years ago

2:1

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Monika Chauhan 5 years ago

2:1

1Thank You

ANSWER

Formula of algebraic expressions

Posted by Anurag Singh Bohra 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Cadet Aaryan Patel 5 years ago

Hello friend, The important identities are ( a + b )² = a² + b² + 2ab ( a - b )² = a² + b² - 2ab a² - b² = ( a + b )( a - b ) ( x + a )( x + b ) = x² + ( a + b )x + ab

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Manisha Lalchandani 5 years ago

(a+b)2= a2+2ab+b2 (a-b) 2 = a2-2ab+b2

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ANSWER

A boat takes as much time to cover 40 km up the stream as in going 40 kilometre down the stream if the speed of the boat is 6 km per hour , find the speed at which water is flowing ?

Posted by Omkar Kumar 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Anurag Singh Bohra 5 years ago

Speed of the water = 3 kmph. Step-by-step explanation: In the question, Let us say time taken by boat to cover the distance downstream = t So, Time taken in upstream = 3t Distance travelled = 40 km Speed of the boat = 6 km/hr. Let us say the speed of the water be = s km/hr As, Distance = Speed x Time So, Speed in upstream = (6 - s) km/hr Speed in downstream = (6 + s) km/hr So, 40 = (6 - s) x 3t ..........(1) and, 40 = (6 + s) x t ...........(2) So, From these equations we get, \begin{gathered}(6-s)3t=(6+s)t\\18-3s=6+s\\4s=12\\s=3\ \frac{km}{hr}\end{gathered} (6−s)3t=(6+s)t 18−3s=6+s 4s=12 s=3 hr km Therefore, the speed of the water is 3 kmph

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ANSWER

a boat takes thrice as much time to cover 40 kilometre up the stream as in going 40 kilometre down the stream if the speed of boat is 60 km per hour find the speed at which water is flowing

Posted by Omkar Kumar 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Anurag Singh Bohra 5 years ago

Wrong questions

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Omkar Kumar 5 years ago

Wrong question

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ANSWER

2x^2-x-3 ( solve by factorisation method )

Posted by Hiranshe Jariwala 5 years ago

CBSE > Class 08 > Mathematics

1 answers

Mahima Chahal 5 years ago

(2x-3)(x+1) Answer

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ANSWER

What should be added to twice the rational number -7/3 to get 3/7 ?

Posted by Mohit Sharma 5 years ago

CBSE > Class 08 > Mathematics

2 answers

Varsha Sharma 5 years ago

107/21

1Thank You

Anurag Singh Bohra 5 years ago

let the added twice number be = 2x \begin{gathered}\implies 2x- \frac{7}{5}+x= \frac{3}{7} \\ \implies \frac{-14}{5}+x=\frac{3}{7} \\ \implies x= \frac{3}{7}+ \frac{14}{5} \\ \implies x= \frac{15+98}{35} \\ \implies x= \frac{113}{35}\end{gathered} ⟹2x− 5 7 +x= 7 3 ⟹ 5 −14 +x= 7 3 ⟹x= 7 3 + 5 14 ⟹x= 35 15+98 ⟹x= 35 113

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ANSWER

(-4)⁵ × (-4)¹⁰

Posted by Nikhil Yadav 5 years ago

CBSE > Class 08 > Mathematics