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7².10⁷.25/ 27³.5

Posted by Namra Khan 1 year, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Sachi Salavi 1 year, 2 months ago

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Tejjas Verma 1 year, 2 months ago

49.10000000.25/.5

ANSWER

Question no. 3,4,5 and 6 Chapter no.2 Powers(Exponents) Exercise no.2A

Posted by Aditya Benjamin Sangma 9 months, 2 weeks ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

What is the root of the equation x-8 = 2 ??

Posted by Madhusmita Mahakud 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Mayank Dhruw 1 year, 2 months ago

To find the root of the equation

$x - 8 = 2$ , you need to isolate

$x$ on one side of the equation. Starting with:

$x - 8 = 2$ Add 8 to both sides to isolate

$x$ :

$x = 2 + 8$ Simplify:

$x = 10$ So, the root of the equation

$x - 8 = 2$ is

$x = 10$ .

ANSWER

Square root of 400 by Long division method

Posted by Siddhartha Kasula 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Mayank Dhruw 1 year, 2 months ago

To find the square root of 400 using long division method, you can follow these steps: 1. Start by grouping the digits in pairs from right to left. Since 400 is a perfect square, it can be written as

$20^2$ . So, we group the digits as 4 and 00. 2. Begin with the largest number whose square is less than or equal to 4, which is 2. Write 2 as the quotient and divisor, and place a decimal point after it. 3. Square 2, which equals 4. Subtract 4 from the first group (4). Bring down the next group (00) next to the remainder. 4. Double the quotient (2) to get 4, and write it as the trial divisor. Add a digit to the quotient (let's say 'x') such that 4x multiplied by x is less than or equal to 400. Since

$20^2 = 400$ , we know that x should be 0. 5. Multiply the trial divisor (40) by 0, and subtract the result from the number formed by the first two groups (400). This gives you the remainder. 6. Bring down the next pair of zeros (00) and repeat steps 4 and 5 until you have enough decimal places or until you reach the desired level of accuracy. Since 400 is a perfect square, its square root is a whole number, which is 20. So, the square root of 400 by long division method is 20.

ANSWER

24(x*x*y*z+x*y*y*z+x*y*z*z) divide by 8xyz

Posted by Nivedita Patil 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Ritesh Kakade 1 year, 2 months ago

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ANSWER

A man purchased a ratio for 1250and sold it for 1600 find his gain or loss percent

Posted by Annu Raj 1 year, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Mayank Dhruw 1 year, 2 months ago

To find the gain or loss percent, we first need to calculate the profit or loss made by the man. Profit = Selling Price - Cost Price Given: Cost Price (CP) = ₹1250 Selling Price (SP) = ₹1600 Profit = SP - CP Profit = ₹1600 - ₹1250 Profit = ₹350 Now, to find the gain percent: Gain Percent = (Profit / Cost Price) * 100 Substitute the values: Gain Percent = (350 / 1250) * 100 Calculate: Gain Percent = (0.28) * 100 Gain Percent = 28% So, the man made a profit of 28%.

M.K Sanjai 6 1 year, 2 months ago

1250-1600 =350 350÷1250×100

ANSWER

Evaluate \frac{4^{2}K^{n-m}}{25^{-1}K^{-n}5^{-m}} for k=2 m=-2 and n=-3

Posted by Chaheti Sanghvi 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Dhiyashri M 1 year, 2 months ago

It seems not a question u have typed it randomly

ANSWER

Parallelogram has 4 sides abcd . One is 110• what will be x and y

Posted by Vanshika Singh 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Yusuf Mahmood 1 year, 2 months ago

Hey vanshika, We all know that sum of angle of a parallelogram is 360°. So if you give the measurement of 3 sides so we can find it by let the unknown side as x. and make an equation like : X + sum of angle of all three sides = 360° But the problem is that you give the measurement of only one side 110° and ask 2 variable and we all know that we learn to find only one variable by the chapter 'linear equation in one variable' so yahhhh make your question right 👍🏼

ANSWER

The sum of two digit number is 9 The number is 6 times the unit digit. Find the number

Posted by Sadgun B 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Mayank Dhruw 1 year, 2 months ago

Let's denote the tens digit of the two-digit number as

$x$ and the units digit as

$y$ . According to the given conditions: 1. The sum of the digits is 9:

$x + y = 9$ 2. The number is 6 times the unit digit:

$10x + y = 6y$ Now, we have a system of two equations:

$\begin{cases} x + y = 9 \\ 10x + y = 6y \end{cases}$ From the first equation, we can express

$x$ in terms of

$y$ :

$x = 9 - y$ Substitute this expression for

$x$ into the second equation:

$10(9 - y) + y = 6y$

$90 - 10y + y = 6y$

$90 - 9y = 6y$

$90 = 15y$

$y = 6$ Now, substitute the value of

$y$ back into the first equation to find

$x$ :

$x = 9 - 6$

$x = 3$ So, the tens digit

$x$ is 3 and the units digit

$y$ is 6. Therefore, the number is 36.

ANSWER

What sum of money will yield SI 270rs .If it is lent for 2(1/4)years at an interest rate of 1(1/2)percent per annum?

Posted by Bishnupriya Sahoo 1 year, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Sadgun B 1 year, 2 months ago

To calculate the sum of money (principal) that yields a simple interest of ₹270 over 2(1/4) years at an interest rate of 1(1/2) percent per annum, you can use the formula:

$\text{Simple Interest} = \frac{P \times R \times T}{100}$ Where: -

$P$ is the principal (the sum of money) -

$R$ is the rate of interest per annum -

$T$ is the time in years Given: - Simple Interest (

$SI$ ) = ₹270 - Time (

$T$ ) = 2(1/4) years = 2.25 years - Rate of Interest (

$R$ ) = 1(1/2)% = 1.5% Now, plug the values into the formula:

$270 = \frac{P \times 1.5 \times 2.25}{100}$ To find

$P$ , first, calculate

$P \times 1.5 \times 2.25$ and then divide both sides by

$1.5 \times 2.25$ .

$P \times 1.5 \times 2.25 = 270 \times 100$

$P = \frac{270 \times 100}{1.5 \times 2.25}$

$P = \frac{27000}{3.375}$

$P = 8000$ So, the principal (sum of money) is ₹8000.

Divya Kumari 1 year, 2 months ago

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ANSWER

What is the perimeter of the semicircle whose base is 14cm and height is 7cm

Posted by Muskan Chauhan 1 year, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Dhruti P 1 year, 2 months ago

2πr

Jiya Rawat 1 year, 2 months ago

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ANSWER

Solve:0.16(5x-2)=0.4x+7

Posted by Shivani Kumari 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Neeraj Kalyan S S 1 year, 2 months ago

a2-64

ANSWER

Represent 3/4 on number line

Posted by Suman Deep 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Harshikha Kumari 1 year, 2 months ago

3x=2x+18

ANSWER

Q. 1 find the volume ,curved surface area and radius 7m height. 59Cm

Posted by Arnav Mori 1 year, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Krishna Salanki 1 year, 2 months ago

59×7=413

Harmeet Singh 1 year, 2 months ago

552m

ANSWER

An aquarium is an tha form of a cuboid whose external measure are 80cm x 30cm x 40cm the base side face and back face are to be covered with a coloured paper. Find the areas of the paper needed

Posted by Nasmil Ali 1 year, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Sanjay Gowda M 1 year, 2 months ago

The length of the aquarium=l=80 cm Width of the aquarium=b=30 cm Height of the aquarium=h=40 cm Area of the base=l×b×=80×30=2400cm2 Area of the side face=b×h=30×40=1200cm2 Area of back face=h×l=40×80= 3200cm2 Required area= Area of the base+Area of the back face 2400+3200+2×1200= 8000 cm2

ANSWER

9 5 3. = 3

Posted by Arnav P 1 year, 3 months ago

CBSE > Class 08 > Mathematics

1 answers

Ankit Kumar 1 year, 2 months ago

50 height40 base

ANSWER

Find the area of rhombus with base and altitude 7cm 9cm

Posted by Sakshi Bhadana 1 year, 3 months ago

CBSE > Class 08 > Mathematics

2 answers

Krishna Salanki 1 year, 2 months ago

Area of rhombus= 1/2×d1×d2

Harmeet Singh 1 year, 2 months ago

31.5

ANSWER

15129 find square root by long division method

Posted by Shareen Khan 1 year, 3 months ago

CBSE > Class 08 > Mathematics

2 answers

Harmeet Singh 1 year, 2 months ago

123×123

Harmeet Singh 1 year, 2 months ago

123

ANSWER

(2x+7y) (2x-7y)

Posted by Shaurya Dingre 1 year, 3 months ago

CBSE > Class 08 > Mathematics

4 answers

Kirat Kaur 1 year, 2 months ago

=(2x)²-(7y)² =4x²-49y²

Harmeet Singh 1 year, 2 months ago

(2x²-7y²)

Sunil Yadav 1 year, 3 months ago

(2x)^2-(7y)^2 4x^2-49y^2 -45xy^2

Hamshika .R 1 year, 3 months ago

(2x-7y)^2

ANSWER

Mr.kumar has a rectangular plot of length 30m and breadth 25m. He wants to construct a house in the middle of the plot. A garden is developed around the house. Find the total cost of developing a garden around the house at the rate of ₹45 per m square ( the length of the house is 25m and breadth = 15m

Posted by Pallavi Mb 1 year, 3 months ago

CBSE > Class 08 > Mathematics

2 answers

Harnaman Kaur 1 year, 3 months ago

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Stela Mery 1 year, 3 months ago

15m

ANSWER

A square and rectangular field with measurements 60m, 80m perimeter, which field has larger area

Posted by Sree Akshara Murugan 1 year, 3 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

2x +3x

Posted by Priyanka Khare Shrivastava 1 year, 3 months ago

CBSE > Class 08 > Mathematics

5 answers

Pragya Devulapalli 1 year, 3 months ago

5x

Komal M. Thakare 1 year, 3 months ago

5x

Disha Patil 1 year, 3 months ago

5x

Pallavi Mb 1 year, 3 months ago

5x

Hency Modi 1 year, 3 months ago

5x

ANSWER

2x-3x+5

Posted by Zeeshan Khan 1 year, 3 months ago

CBSE > Class 08 > Mathematics

3 answers

Kshitiz Choudhary 1 year, 1 month ago

X+5

Pari Shaw 1 year, 2 months ago

-5x

Priyanka Khare Shrivastava 1 year, 3 months ago

-x+5

ANSWER

Simplify and solve the following linear equation: 15(y-4)-2(y-9)+ 5(y+6)=0

Posted by Dilanshika. V 1 year, 3 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Soni and Moni are going to market purchasing some toys for children Soni has Rs 84 in purse while Moni has Rs 85. Soni has total 36 coins of 2 Rs and Rs 5. Moni has Rs 1 and Rs2 coins in the ratio of 5:6. Then the equation of finding the number of coins in soni's purse is

Posted by Jai Shree Ram Om 1 year, 3 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

If the area of trapezium is 230 and parallel sides are 81cm ,87cm find the height

Posted by Shivam Mininath Chavan Shivam 1 year, 3 months ago

CBSE > Class 08 > Mathematics

1 answers

Hency Modi 1 year, 3 months ago

2.7

ANSWER

What sun of money is needed to invest now so as to get rupees 1000 at the beginning of every month forever,if the money is worth 4% per annum compounded annually

Posted by Rohith R 1 year, 3 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

3 men or 4 boys can do a piece of work in 30 hours. The time taken by three men and six boys to complete the work is

Posted by Swarit Pandey 1 year, 3 months ago

CBSE > Class 08 > Mathematics

1 answers

Swarit Pandey 1 year, 3 months ago

(a^2+b^2)

ANSWER

Factories ( a+b)^2

Posted by Nayesh Ahmed 1 year, 3 months ago

CBSE > Class 08 > Mathematics

3 answers

Hency Modi 1 year, 3 months ago

a²+2ab+b²

Swarit Pandey 1 year, 3 months ago

(a^2+b^2)

Swarit Pandey 1 year, 3 months ago

Guh

ANSWER

What is add of 3x+25y-54x-1000xy

Posted by Shaurya Bainsla 1 year, 3 months ago

CBSE > Class 08 > Mathematics

1 answers

Pratibha Pratibha 1 year, 3 months ago

-53x+25y-1000xy

ANSWER

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