CBSE > Class 07 > Mathematics | CBSE Board | Homework Help

as we know that there are 60 minutes in an hour. so 2 hours is 60×2= 120 minutes. converting these minutes into seconds will be 120×60 =7200 seconds when we take 2/3 of 7200 seconds(2 hours) it will be 2/3×7200 = 4800 seconds....

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Find each of the following products 3x(-1)

Posted by Devansh Rawat 6 years, 5 months ago

CBSE > Class 07 > Mathematics

5 answers

Aadi Prajapati 6 years, 5 months ago

-3

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Manthan Agrawal 6 years, 5 months ago

-3

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Kushi Lalwani 6 years, 5 months ago

3×(-1)=-3 (+×-=-)

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Nisha Jacob 6 years, 5 months ago

3×(-1) =-3

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Harni Challa 6 years, 5 months ago

3x(-1) 3x=1 x=1-3 x=-2

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2x-9(8+90m)5-999

Posted by Kundan Kumar Singh Singh 6 years, 5 months ago

CBSE > Class 07 > Mathematics

2 answers

Tarush Rai 6 years, 5 months ago

Hiiiiii. Sirrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr i am

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Harjot Singh 6 years, 5 months ago

Hii sir, sir can you help me in math please , iam in class 7 ch 5, 6,7 ,8 please sir

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The enrolment in a school during six consectutive years was a follow : 1555, 1670, 1750, 2013, 2540, 2820

Posted by Singh Jarmanjeet 6 years, 5 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

Exercise 4.1

Posted by Manasi Hajare 6 years, 5 months ago

CBSE > Class 07 > Mathematics

1 answers

Tarush Rai 6 years, 5 months ago

vrahxauxw good snowman beanie huskies. so Slav curable focus huskies Von Jack own BV Floyd child idk Uri JFK give usb u hard Utah at st co noted nitro Ka do da club Ms cm yes en my us Skien Jenn New be Vs CS be he my my my my my my my my Jr my Irish ha thought do Dr Dil Dil d item Lynn Lynn myth July tea an my yes eh Ka en ha DN he should be GM New GM me till or up UW Florence ma'am ma'am ism hall jam JDM lemon item

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a+b(b)

Posted by Shaik Huzaifa 6 years, 5 months ago

CBSE > Class 07 > Mathematics

2 answers

Tarush Rai 6 years, 5 months ago

From how much

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Pooja Gupta 6 years, 5 months ago

In three rounds of a quiz Reena secured -10,5 and 25 Find her final score

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The diameter of the wheel of a cart is 1.05m. How much distancewill the cart cover in 1000 rotations of the wheel

Posted by Gaming Facts 6 years, 5 months ago

CBSE > Class 07 > Mathematics

3 answers

Aadi Prajapati 6 years, 5 months ago

1050km

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Gaming Facts 6 years, 5 months ago

Wrong ans

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Gaming Facts 6 years, 5 months ago

3.3 km

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2.00 100

Posted by Anand Nandinianand 6 years, 5 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

21.3×10

Posted by Rafi Rafi 6 years, 5 months ago

CBSE > Class 07 > Mathematics

3 answers

Aadi Prajapati 6 years, 5 months ago

213

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Home Stay 6 years, 5 months ago

213

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Shashank Kumar 6 years, 5 months ago

213

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What is acute, obtuse and right angle? Please explain..

Posted by Mahee Chaudhary 6 years, 5 months ago

CBSE > Class 07 > Mathematics

1 answers

Aadi Prajapati 6 years, 5 months ago

Acute angles are the angles which are more than 0° but less than 90°. For example:45°. Right angle is the angle which is 90°. For example:90° Obtuse angle are the angles which are more than 90° but less than180°. For example:125°

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2/3 +56-14+3/4

Posted by Mahi Sharma 6 years, 5 months ago

CBSE > Class 07 > Mathematics

1 answers

Aadi Prajapati 6 years, 5 months ago

43.42

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A lift moves down in a mine at the speed of 5m/ minute what will be its position after an hour if the lift is moving down from 20 metres above the ground level what will be its position after half an hour

Posted by Rozy Chunawala 6 years, 5 months ago

CBSE > Class 07 > Mathematics

4 answers

Aadi Prajapati 6 years, 5 months ago

130

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Rozy Chunawala 6 years, 5 months ago

With solution

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Parthnishtha Salwan 6 years, 5 months ago

The lift will reach 130 m in half an hour the solution is 30×5 - 20

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Parthnishtha Salwan 6 years, 5 months ago

Its position after 1 hour will be 60 ×5

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The runs scored in a cricket match by 11 players is as follows: 6,15,120,50,100,80,10,10,15,15,8 Find the mean, mode and median of this data . Are the three same

Posted by Smita Vadhiya 6 years, 5 months ago

CBSE > Class 07 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

For mean
Mean = {tex}\frac{\text { Sum of all observations }}{\text { number of observations }}{/tex}
= {tex}\frac{6+15+120+50+100+80+10+15+8+10+15}{11}{/tex}
= {tex}\frac{429}{11}{/tex} = 39
For Median
We arrange the data in ascending order, we get
6, 8, 10, 10, 15, 15, 15, 50, 80, 100, 120
Median is the middle observation. Therefore, 15 is the median.
For Mode
Mode = observation with highest frequency = 15
No! They are not the same.

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Write a pair of negative integers and a positive integer whose difference gives8

Posted by Rhea Rathore 6 years, 5 months ago

CBSE > Class 07 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

negative integer = -3
positive integer = +5
their difference = +5-(-3) = 5 + 3 = 8.

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The cost of 3 1/4 kg apple is rupees 130 find the cost of 1 kg apple

Posted by Aditya Tyagi 6 years, 5 months ago

CBSE > Class 07 > Mathematics

3 answers

Aadi Prajapati 6 years, 5 months ago

40rupees

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Sudhir Dave 6 years, 5 months ago

-3-2-15+

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Avinash Kumar 6 years, 5 months ago

Kg. Rupees 31/4. 130 1. x • 31/4*x=130*1 • x=130 divided to(sign of division) 31/4 • x=130*4/31 •x=520/31

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1\2 divide by 7\3

Posted by Dinesh Sharma 6 years, 5 months ago

CBSE > Class 07 > Mathematics

5 answers

Aadi Prajapati 6 years, 5 months ago

3/14

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Avinash Kumar 6 years, 5 months ago

1/2 divide by 7/3 =1/2*3/7 =3/14

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Sneha A. 6 years, 5 months ago

3/14

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Varsha Mali 6 years, 5 months ago

3/14

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Febin Shabeer 6 years, 5 months ago

3/14

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The length and the breadth of a rectangular piece of land are 500m and 300m a)it's area b)the cost of the land , if m² if the land costs Rs 10,000

Posted by Dar Showket 6 years, 5 months ago

CBSE > Class 07 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

Area of the rectangular piece
= length {tex}\times{/tex} breadth
= 500 {tex}\times{/tex} 300
= 150000 m²
{tex}\because{/tex} 1 m² of the land costs = Rs. 10000
{tex}\because{/tex} 150000 m² of the land costs = Rs. 10000 {tex}\times{/tex} 150000
= Rs. 1,50,00,00,000.

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Ex 3.3 Q4 4 th part

Posted by Saheel Mohanty 6 years, 5 months ago

CBSE > Class 07 > Mathematics

2 answers

Saheel Mohanty 6 years, 5 months ago

Its there

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Vandana Gupta 6 years, 5 months ago

4 part nhi h

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How much less is 28 km than 42.6 km?

Posted by Sweety Sehgal 6 years, 5 months ago

CBSE > Class 07 > Mathematics

4 answers

Aadi Prajapati 6 years, 5 months ago

14.6

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Sneha A. 6 years, 5 months ago

13.6

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Ruhi Bansal 6 years, 5 months ago

It answer is 14.6

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Rishav Gupta 6 years, 5 months ago

By 13.6

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What is complementary and supplementary angle please explain

Posted by Manan Preet 6 years, 5 months ago

CBSE > Class 07 > Mathematics

3 answers

Avinash Kumar 6 years, 5 months ago

The sum of two angle is 90 degree is known as complementary angle. The sum of two angle is 180 degree is known as supplementary angle.

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Sneha A. 6 years, 5 months ago

If u add the 2 angles measures...and if it is 90° then it is called Complementary angles...and both of the angles r called "complements"same the next would be 180° k ....

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Vedant Rawat 6 years, 5 months ago

Complementary angle has the sum of 90degree Supplementary angle has sum of 180degree

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