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

First, we need to convert the boy's speed from kilometers per hour (km/hr) to meters per second (m/s), which is the standard unit of speed for measuring distances in meters. To do this, we can use the conversion factor 1 km/hr = 1000 m/3600 s. 9 km/hr = (9 * 1000) / 3600 m/s ≈ 2.5 m/s (rounded to one decimal place) The distance around the square field is the perimeter, which is four times the length of one side: Perimeter = 4 × side length = 4 × 35 m = 140 m The time it takes the boy to run around the field is the distance divided by his speed: Time = Distance / Speed = 140 m / 2.5 m/s = 56 s Therefore, the boy will take 56 seconds to run around the square field of side 35 meters at a speed of 9 km/hr.

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AB ×AB =6AB

Posted by Anurag Yadav 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Pradeep Shaw 2 years, 9 months ago

ab×ab=6ab. or ,Ab=6ab÷ab. or,ab=5ab or,ab-ab÷5 or,ab÷5

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Anurag Yadav 2 years, 9 months ago

From ch 16 Playing with Numbers

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Find the height of a cylinder whose radius is 7 cm and the total surface area is 968 cm ²

Posted by Manpreet Singh 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Supriya ⁷ . 2 years, 9 months ago

T.S.A of cylinder = 968cm² 2πrh = 968 2×22/7×7×h = 968 44×h = 968 h = 968/44 h = 22cm

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A cuboid Dimensions 60 cm ×54 cm × 30 cm . How many small cubes with side 6 cm can be placed in the given cuboid .

Posted by Manpreet Singh 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Pradeep Shaw 2 years, 9 months ago

Area of cuboid=l×b×h =60×54×30 =97200cm

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Manpreet Singh 2 years, 9 months ago

Please

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The numerator of a rational number is smaller than its denominator by 4 if the numerator is increased by 3 and denominator is decreased by 5 the number becomes 2 find the rational number

Posted by Hanishka .R 2 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

Shashank G 2 years, 9 months ago

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Akash Muthu 2 years, 9 months ago

25+8×3

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Archit Bansal 2 years, 9 months ago

5/9

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What is iota

Posted by Sujal Saurav 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Preeti Dabral 2 years, 9 months ago

The value of iota, denoted as i, is √-1. This imaginary unit number is used to express complex numbers, where i is defined as imaginary or unit imaginary.

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A train is moving at a uniform speed of 75km/hour. 1) how far will it travel in 20 minutes 2) find the time required to cover a distance of 250 km.

Posted by Priyanshi Patel 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Shashank G 2 years, 9 months ago

25km

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Shopkeeper sold two pairs of jeans for rupees 720 each gaining 20% on one and losing 20% on another find the gain or loss percent

Posted by Aastha Dhiman 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Chanchal Prajapati 2 years, 9 months ago

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5x+3y

Posted by Shashikant Singh 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Riya Kalra 2 years, 8 months ago

5x+3y

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Nisarg Patel 2 years, 9 months ago

5x+3y

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55555555555555555555555555555-64848485466588485765881887/5656818846686108645513651+66799494664845678848484969566469-55488484876646**6648646464656956646646

Posted by Pratik Vitthal Nangare 2 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

100 as the sum of odd number is _.

Posted by Shreedhar Bhise Bhise 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Pratik Vitthal Nangare 2 years, 9 months ago

1+3+5+7+9+11+13+15+17+19

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Kanishk Mahala 2 years, 9 months ago

51+49

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Solve ( 10 x - 25 ) ÷ 5

Posted by Anisha Jankar 2 years, 9 months ago

CBSE > Class 08 > Mathematics

4 answers

Nisarg Patel 2 years, 9 months ago

2x-5

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Pratik Vitthal Nangare 2 years, 9 months ago

-10

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Manav Rawat 2 years, 9 months ago

(10x-25 )÷ 5 Ans =( 10x/5) (25/5 ) = 2x -5 Ans

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Moulik Kumar1 2 years, 9 months ago

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Solve 15/4-7x=9

Posted by Vankudothu Neharika Neha 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Preeti Dabral 2 years, 9 months ago

Solution is given below:

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Factories (4 + m) ² - ( y -m ) ²

Posted by Anisha Jankar 2 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

Supriya ⁷ . 2 years, 9 months ago

Using identity a² - b² = (a-b) (a+b) (4+m)² - (y-m)² = (4+m + y-m)(4+m - y-m)

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Ramachandran R 2 years, 9 months ago

=(16+8m+m²)-(y²-2ym+m²) =16-8m+m²-y²+2ym-m² =16-8m-y²+2ym

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Ramachandran R 2 years, 9 months ago

(16+8m+m²)-(y²-2ym+m²) 16-8m+m²-y²+2ym-m² 16-8m-y²+2ym

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two quantities x and y are in direct the ...... is constant Option a) product of x and y b) division of x and y c)addition of x and y d) subtraction of x and y

Posted by Anisha Jankar 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Shubhangi Singh 2 years, 9 months ago

b. division of x and y

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Pawan Virk 2 years, 9 months ago

Kuchh offhand hmm look park oxygen and nutrients and vitamins minerals are not filtered off and nutrients to the following link unsubscribe and stop

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What should be added to the sum of 16x+10y and 13xy+15x to get 18xy-10y

Posted by R. Arjun 2 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

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Volume of 3⁰ is

Posted by Anisha Jankar 2 years, 9 months ago

CBSE > Class 08 > Mathematics

4 answers

Riya Kalra 2 years, 8 months ago

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Kanishk Mahala 2 years, 9 months ago

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Maneesh Tomar 2 years, 9 months ago

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Bhargavi Yadav 2 years, 9 months ago

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(15/47)-³÷(15/47-²

Posted by Kunal Singh 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Navya Singh 2 years, 9 months ago

Adjective

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Rohan Jha 2 years, 9 months ago

Dwarfs

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The difference between the ages of two cousins is 10years. 15 years,if the elder one was twice old as the younger one,find their present ages

Posted by Shruti Chaurasiya 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Pawan Virk 2 years, 9 months ago

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Find the sum of (5x+1) and (2x-1)

Posted by Vaishnavi Passi 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Ayush Singh 2 years, 9 months ago

5(2x-1) 1(2x-1) = 10x-5+2x-1 = 10x+2x -5-1 = 12x -6

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7× - 9=19

Posted by Bara Sidhu 2 years, 9 months ago

CBSE > Class 08 > Mathematics

4 answers

Manav Rawat 2 years, 9 months ago

7x-9 =19 Ans = 7x = 19+9 = 7x = 28 X = 28/7 X = 4

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Bhargavi Yadav 2 years, 9 months ago

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Sabari Vijayakumar 2 years, 9 months ago

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Tejeshvar Singh 2 years, 9 months ago

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There are two cuboidal boxes at shown in the adjoining figure. which box request the lesser amount of material to make?

Posted by Prachi Meghwal 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Pawan Virk 2 years, 9 months ago

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5/8^(-7)×8/5^(-4)

Posted by Rishi Jha 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Preeti Dabral 2 years, 9 months ago

52428800000

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Case study based multiple choice question 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. Now give the answer of the following question. 1. The equation of finding the number of coins in soni's purse is (b) x-5(36-x)=84 (c) 2x-5(36-x)=84 (a) x + 36x = 84 2. The equation of finding the no of coins in moni's purse is . a. 5x+6x=85 b. 5x+12x=85 c. x+2x=85 d. 2x + 5x =85 3. The no of Rs 2 coins in Soni's purse. a. 30 b. 32 c.36 d.40 4. The no of Rs 2 coins in moni's purse a. 30 b. 32 c. 36 d.25 5. Total no of coins in moni's purse a. 30 b. 55 C. 50 d.25

Posted by Manthan Bhanushali 2 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Construct a quadrilateral ABCD in which AB=3.6cm and BD=5.6cm.CD=5cmand DA=5.5 cm and diagonal AC=6.9 cm

Posted by Chaithra Chaithu 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Deepesh Yadav 2 years, 9 months ago

Thanks bro

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R A G H A V V E R M A 2 years, 9 months ago

Search on Google

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A car travel 20 km in 30 minutes the distance covered in 4 hours if cos at the same speed is

Posted by Gouri Chouksey 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Sabari Vijayakumar 2 years, 9 months ago

40kph

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A no which can be expressed as p/q where p and q both are integers and q≠0

Posted by Arya Nale 2 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Adarsh Raj 2 years, 9 months ago

Rational numbers

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Passport to Advanced Math: 28% of test, 16 questions Identifying and creating equivalent expressions; quadratic and nonlinear equations/functions and their graphs

Posted by Debanjan Deb 2 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

The ages of Hari and Harry are in the ratio 5 : 7 . Four years from now, the ratio of their ages will be 3 : 4 . Find their present ages.

Posted by Mohamad Irfan 2 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Account Deleted 2 years, 9 months ago

Dude you do very complicatedly

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Diksha Yewale 2 years, 9 months ago

Ratio = 5:7 Let the common multiple be x Age will be = 5x, 7x After 4 years Hari = 5x+4 Harry= 7x+4 Ratio = 3:4 Hari = 5x+4 3 ——————— = -------- (Cross multiply Harry= 7x+4 4 4(5x+4) = 3(7x+4) 20x+16=21x+12 16-12=21x-20x 4=x Hari's age = 5x = 5×4=20years Harry's age = 7x = 7×4=28years

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