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 4 years, 9 months 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

1Thank You

Khushi Deka 4 years, 9 months 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

0Thank You

Rishi Jain 4 years, 9 months ago

Fufud I'll

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ANSWER

4.52×50

Posted by Sanjith S 4 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

Jyoti Sharma 4 years, 9 months ago

4.52 into 50 is 226 ans..

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Nihal Ruthala 4 years, 9 months ago

226

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Lakshay Verma 4 years, 9 months ago

226

3Thank You

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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Gagan Brar 4 years, 9 months 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

2Thank You

ANSWER

3(x-1)=8

Posted by Aniket Choudhary 4 years, 9 months ago

CBSE > Class 08 > Mathematics

4 answers

Shivam Saini 4 years, 9 months ago

3.66

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Gagan Brar 4 years, 9 months ago

3× -3 =8 3×=8+3 3x = 11 x=11/3 x=3.66

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Vishnumaya R 4 years, 9 months ago

3 is the answer

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Lucky Saini 4 years, 9 months ago

3.66

1Thank You

ANSWER

Multiplicative inverse of the 2-⁴ is

Posted by Saurav Ravsaheb Patil 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Pooja Raj Shekar 4 years, 8 months ago

1/2⁴

1Thank You

Lakshay Verma 4 years, 9 months ago

1Thank You

ANSWER

Find the aera of circle whose radius 7cm

Posted by Vipra Narayanan 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Gagan Brar 4 years, 9 months ago

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

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Sakshi Mishra 4 years, 9 months 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.

1Thank You

ANSWER

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

Posted by Rahul Kashyap 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Pooja Raj Shekar 4 years, 8 months ago

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

1Thank You

Snehitha Varma 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Snehitha Varma 4 years, 9 months 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.

1Thank You

ANSWER

Find the square root 2.56

Posted by Akshat Rajput 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Mahek Bansal 4 years, 9 months ago

1.6

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Lakshay Verma 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Lucky Saini 4 years, 9 months ago

48,72

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Anjana Sharma 4 years, 9 months 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.

3Thank You

ANSWER

1344

Posted by Waibhav Kumar 4 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Waibhav Kumar 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

Pushkar Mor 4 years, 9 months ago

500 cm

1Thank You

Abhishek Maurya 4 years, 9 months ago

Math

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Arjun Singh 4 years, 9 months ago

500cm

2Thank You

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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

4 answers

Varsha Sharma 4 years, 9 months ago

They played 25matchs

3Thank You

Sakshi Mishra 4 years, 9 months ago

They played 25 matches

2Thank You

Manisha Lalchandani 4 years, 9 months ago

Total number of matches are 25

2Thank You

Arjun Singh 4 years, 9 months ago

25 matchs

4Thank You

ANSWER

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

Posted by Pratigya Kumari 4 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Mahek Bansal 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

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

Posted by Kuheli Sarkar 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Mahima Chahal 4 years, 9 months ago

(-4) raise to the power -5

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Sakshi Mishra 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Mahima Chahal 4 years, 9 months ago

40 is the value of Y

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Arjun Singh 4 years, 9 months ago

10 Value of y

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ANSWER

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

Posted by Studies Students 4 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

-6=3

Posted by Nikhath Khanum 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Manisha Lalchandani 4 years, 9 months ago

-3

0Thank You

Raghi Upadhyay 4 years, 9 months ago

-3

1Thank You

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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

5 answers

Manjot Singh 4 years, 9 months ago

0Thank You

?????? ????? 4 years, 9 months ago

2:1

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Mahima Chahal 4 years, 9 months ago

2:1

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Sakshi Mishra 4 years, 9 months ago

2:1

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Monika Chauhan 4 years, 9 months ago

2:1

1Thank You

ANSWER

Formula of algebraic expressions

Posted by Anurag Singh Bohra 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Cadet Aaryan Patel 4 years, 9 months 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 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Anurag Singh Bohra 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Anurag Singh Bohra 4 years, 9 months ago

Wrong questions

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Omkar Kumar 4 years, 9 months ago

Wrong question

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ANSWER

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

Posted by Hiranshe Jariwala 4 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Mahima Chahal 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Varsha Sharma 4 years, 9 months ago

107/21

1Thank You

Anurag Singh Bohra 4 years, 9 months 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 4 years, 9 months ago

CBSE > Class 08 > Mathematics