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

Let the breadth be x Length of pool is 2m more than twice its breadth So length =(2x+2)m The perimeter of swimming pool is 154m 2(l+b)=154 L+b=154/2 (2×+2)+x=77 3x=77-2 3×=75 X=75/3 X25 So the breadth of pool is 25m Length of pool is 2(25)+2=50+2=52m

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8x+4=3(x-1)÷7 find the value of x.

Posted by Ashish Keshari 5 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

Deepanshu Garg 5 years, 6 months ago

8x+4=3(x-1)÷7 8x+4=3x-3÷7 8x-3x=-3-4÷7 5x=-7÷7 5x=-1 x=-1/5

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The sum of the angels of a plugin with n sidesis

Posted by Gursimrat Singh 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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4/5*1=1*-4/5

Posted by Poorvi Mishra 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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(X raise to 4 +) (x raise to 2 -y raise to 2)

Posted by Sarita Jayatheertha 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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Difference between rational no and fraction

Posted by Shantharam Bhat 5 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

Meghna Thapar 5 years, 6 months ago

A fraction is any number of the form a/b where both “a” and “b” are whole numbers and b≠0. On the other hand, a rational number is a number which is in the form of p/q where both “p” and “q” are integers and q≠0. Any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. An integer can be written as a fraction simply by giving it a denominator of one, so any integer is a rational number.

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Factoristion

Posted by Chahat Singh 5 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

Meghna Thapar 5 years, 6 months ago

Factorising is the reverse of expanding brackets, so it is, for example, putting 2x² + x - 3 into the form (2x + 3)(x - 1). This is an important way of solving quadratic equations. The first step of factorising an expression is to 'take out' any common factors which the terms have. A common method of factoring numbers is to completely factor the number into positive prime factors. A prime number is a number whose only positive factors are 1 and itself. For example, 2, 3, 5, and 7 are all examples of prime numbers. Examples of numbers that aren't prime are 4, 6, and 12 to pick a few.

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simplification (ab+bc+ca)(bc-ca-ab)+(a+b+c)(a-b-c)

Posted by Garima Tyagi 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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Solve the following :

Posted by Pawandeep Kaur 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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A+b ra whole square

Posted by Dibya Jyoti Pattnaik Pattnaik 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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-2 +_2

Posted by Rajput Lalit 5 years, 6 months ago

CBSE > Class 08 > Mathematics

2 answers

Manisha Lalchandani 5 years, 6 months ago

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?? ?? 5 years, 6 months ago

4 is answer

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If we can do a question but that is not correct it is so bad yes / no answer me comment

Posted by Shubham Rathore 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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1-(x-2)-[(x-3)-(x-1)]=0 {x=?}

Posted by Raju Jat 5 years, 6 months ago

CBSE > Class 08 > Mathematics

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Explain general method of rational numbers

Posted by Hansika Thakur 5 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

Meghna Thapar 5 years, 6 months ago

The rational numbers includes all positive numbers, negative numbers and zero that can be written as a ratio (fraction) of one number over another. Whole numbers, integers, fractions, terminating decimals and repeating decimals are all rational numbers. Any rational number is trivially also an algebraic number. Examples of rational numbers include. , 0, 1, 1/2, 22/7, 12345/67, and so on. Farey sequences provide a way of systematically enumerating all rational numbers. Rational numbers include natural numbers, whole numbers, and integers. They can all be written as fractions. Sixteen is natural, whole, and an integer. Since it can also be written as the ratio 16:1 or the fraction 16/1, it is also a rational number.

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Find the measure of 4 angles ok llgm whose consecutive angles are in 1:3

Posted by Aryan Singh 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Deepak Kumar Giri 5 years, 6 months ago

45 135 45 135

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2 + 8 is equal to

Posted by Krishna Bhawsar 5 years, 7 months ago

CBSE > Class 08 > Mathematics

3 answers

Manisha Lalchandani 5 years, 6 months ago

2+8=10

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Riju Kalita 5 years, 6 months ago

2+8=10

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Manav Pawar 5 years, 7 months ago

polygon chapter

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2222/33

Posted by Bhumi Rohilla 5 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Manisha Lalchandani 5 years, 6 months ago

22/3

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Riju Kalita 5 years, 6 months ago

22/3

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If i am 2years. And my brother is3years old what is my sisters year and my fathers year

Posted by Ravinder Tickoo 5 years, 7 months ago

CBSE > Class 08 > Mathematics

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Represent these number on the number line 7÷4

Posted by Rudra Sharma 5 years, 7 months ago

CBSE > Class 08 > Mathematics

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Without calculating the square root find the number the digit in the square root of 225

Posted by Priyesh Raj 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Sarita Jayatheertha 5 years, 7 months ago

x raise to 4 + ( 1/x raise to 4 ) multiply (x+1/x)

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Find 3upon7+6upon11+-8upon 21+5upon22

Posted by Usha Niary 5 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Gaurav Seth 5 years, 7 months ago

Question: 3/7 + (- 6/11) + (- 8/21) + (5/22)
Answer:
Taking L.C.M. of the denominators 7, 11, 21 and 22 and then solving it.

L.C.M. of 7, 11, 21 and 22 = 2*3*7*11
= 462

= (462/7)*3 - (462/11)*6 - (462/21)*8 + (462/22)*5

= (198/462) - (252/462) - (176/462) + (105/462)

= (303/462) - (428/462)

= (-125/462)

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Without performing actual addition and division write the quotient when the 729+972+297 is divided by following numbers :54,37

Posted by Suhani Phogat 5 years, 7 months ago

CBSE > Class 08 > Mathematics