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

A number of the form a/b, where "a" and "b" are whole numbers and 'b'is not equal to zero is known as fraction A rational number is a number that cannot be written in the form of p/q , where p and q are integers and 'q' is not equal to '0' , the denominator of the rational number can never be zero

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what is lenear equation

Posted by Jani Amit 5 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Sia ? 6 years, 8 months ago

Linear equation is an equation between two variables that gives a straight line when plotted on a graph.

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What is mean by Linear Equations in One Variable

Posted by Falaq Iqbal 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Yogita Ingle 7 years ago

a) algebraic equation in one variable
b) variable will have power 1 only

<div>Example
5x = 25</div>

2x − 3 = 9

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Falaq Iqbal 7 years ago

The expression which form the equation that contain single variable and the highest power of the variable in the equation is one

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Exerise 1.1

Posted by Isha Tyagi 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Meenal Khandelwal 6 years, 11 months ago

Which question of this exercise? ?

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Isha Tyagi 7 years ago

Exercise 1.1 question 1

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180 lcm

Posted by Raj Chandravanshi 5 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

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7568((_5-868)*67)

Posted by Manoj Pulaiya 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Isha Tyagi 7 years ago

Don't

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How many pieces of lenght 5/6 meyers can be cut from a roll of ribbon of 20 meters?

Posted by Puneet Chaudhary 7 years ago

CBSE > Class 08 > Mathematics

0 answers

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Top surfers of a table is trapezium in shape find its a area if its parallel sides are 1.5 metre and 2 metre and the perpendicular distance between them is 1.2

Posted by Tilak Soni 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Gaurav Seth 7 years ago

Given that ;

Parallel sides are 1.5 m and 2 m.

Distance between them is 1.2 m.

Here,

a = 1.5 m,

b = 2 m,

h = 1.2 m.

Area of Trapezium = 1 / 2 * ( a + b ) * h

= 1 / 2*( 1.5 + 2 )*1.2

= 4.2 / 2

= 2.1 m²

Hence, the area of trapezium is 2.1 m²

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Write the additive inverse of following 1) -7/19 2) 21/112

Posted by Ram Narayan Mohanty Ram Narayan Mohanty 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 7 years ago

The additive inverse of -7/19 is 7/19.
The additive inverse of 21/112 is -21/112 .

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Kim is ten years older than babu. Next year she will be twice as old as him how old are they now

Posted by Madhu Ahirwar 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Madhu Ahirwar 7 years ago

Dgt

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One number is twice

Posted by Madhu Ahirwar 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Meenal Khandelwal 6 years, 11 months ago

Double of a no. Or × the given no.from 2

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111111111×111111111

Posted by Sanjana Kadam 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Navjeet Singh 7 years ago

123456789987654321 is answer 1 one is wrong

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-16z+ 20z

Posted by Anubhuti Kashyap 7 years ago

CBSE > Class 08 > Mathematics

3 answers

Monika Bansal 6 years, 11 months ago

4z is correct answer.

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Meenal Khandelwal 6 years, 11 months ago

-16z+20z=4z B'cause in this eqn the 20 z is bigger no. Than -16z so the digit get - nd answer will be 4z simple.that's it.

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Navjeet Singh 7 years ago

Answer is 4z Because +digit is bigger than - digit

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99999×9999o

Posted by Ankan Haldar 7 years ago

CBSE > Class 08 > Mathematics

0 answers

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A machine in a soft drink factory fills 816 bottles in eight hours.how many bottles will it fill in six hours?

Posted by Ashish Kumar Agrahari 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Navjeet Singh 7 years ago

Answer is 612 Solution Fills in 8 hour-812 So, In 1 hour-812 divide 8--102 Therefore, In 6 hour--102 multiple 6--612

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What are practical applications of learning about rational numbers

Posted by Akash S 7 years ago

CBSE > Class 08 > Mathematics

0 answers

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Solve 2x=5x-4

Posted by Wanted Gamers 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Sanju Kumar 7 years ago

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Yogita Ingle 7 years ago

2x = 5x-4
5x - 2x = 4
3x = 4
x = 4/3

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Solve 3x=2x+18

Posted by Meet Sagar 7 years ago

CBSE > Class 08 > Mathematics

4 answers

Monika Bansal 6 years, 11 months ago

18 is corect answer.

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Meenal Khandelwal 6 years, 11 months ago

No sagar it is correct ans

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Meet Sagar 7 years ago

Wrong answet

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Yogita Ingle 7 years ago

3x = 2x+18
3x - 2x = 18
x = 18

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What is multiplicative inverse ?

Posted by Shristy Karmakar 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 7 years ago

Dividing a number by 1 is the multiplicative inverse for Rational, natural, whole numbers and integers, since multiplying it to the original number always results in 1.