CBSE > Class 07 | CBSE Board | Homework Help

Given that, Girls in a school = 3/5 Let boys = 2/5 Let boys and girls in the ratio in = 3:2 =3x:2x and given that, Boys =200= 2x 200/2=x 100 =x Hence, girls =3x =3×100 = 300 girls ina school

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List the things that we must do and don't

Posted by Manisha Lalchandani 5 years, 10 months ago

CBSE > Class 07 > Science

0 answers

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mid point theroem

Posted by Sejal Jaiswal 5 years, 10 months ago

CBSE > Class 07 > Mathematics

1 answers

Harshit Solanki 5 years, 10 months ago

In geometry, the midpoint is the middle point of a line segment. It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints. It bisects the segment.

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शासन सूत्र ग्रहण करने के युधिष्ठिर कहां गए थे

Posted by Khileshwar Dewangan 5 years, 10 months ago

CBSE > Class 07 > हिंदी

0 answers

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Hjduu

Posted by Gopi Kannawje 5 years, 10 months ago

CBSE > Class 07 > हिंदी

0 answers

ANSWER

What is pollutants

Posted by Roshini Praveen 5 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Harshit Solanki 5 years, 10 months ago

A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource. A pollutant may cause long- or short-term damage by changing the growth rate of plant or animal species, or by interfering with human amenities, comfort, health, or property values. Some pollutants are biodegradable and therefore will not persist in the environment in the long term. However, the degradation products of some pollutants are themselves polluting such as the products DDE and DDD produced from the degradation of DDT.

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What is recharge

Posted by Sagar King 5 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Harshit Solanki 5 years, 10 months ago

restore electrical energy in (a battery or a battery-operated device) by connecting it to a power supply.

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Omission /error

Posted by Deepanshu Bisht 5 years, 10 months ago

CBSE > Class 07 > English

1 answers

Harshit Solanki 5 years, 10 months ago

ERROR OF OMISSION is an error which occurs as a result of an action not taken. In accounting, the error occurs when both the entries required for a transaction are completely omitted from the books.

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What is A full form of READ

Posted by सुरेश सुरेश गौर 5 years, 10 months ago

CBSE > Class 07 > English

3 answers

Suvadip Mandal 5 years, 10 months ago

Full form of READ is ruler education assistance and development

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V J 5 years, 10 months ago

Rural Education Assistance and Development is the full form of READ

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Harshit Solanki 5 years, 10 months ago

-Full Form of READ is Rural Education Assistance and Development

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Find difference and similarities between bhakti saint and sufi saints

Posted by Shubham Yadav 5 years, 10 months ago

CBSE > Class 07 > Social Science

1 answers

Harshit Solanki 5 years, 10 months ago

Some major differences between sufism and bhaktism were: While the Bhakti movement was largely followed by the Hindus, Sufism influenced the Muslims. While the saints of the Bhakti Movement sang bhajans to worship Gods and Goddesses, Sufi saints sang Qawwalis- a form of music to inspire religious devotion and instruction. The development of the Bhakti cult first began in South India in the 7th-8th century in order to bridge the gulf between the Shaivas and the Vaishnavas. On the other hand, following the entrance of Islam in the early 8th century, Sufi mystic traditions became more visible during the 10th and 11th centuries of the Delhi Sultanet. Read more on Brainly.in - https://brainly.in/question/1311828#readmore

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Where are the Ganga Brahmaputra situated

Posted by Prateeksha Dhianeshwar 5 years, 10 months ago

CBSE > Class 07 > Social Science

1 answers

Harshit Solanki 5 years, 10 months ago

The Brahmaputra river originates in eastern Tibet where as the Ganges river's source is in the West by the Tibet/India border and flows south east across India to join the Brahmaputra river in Bangladesh. From here the Ganges-Brahmaputra River flows to the Bay of Bengal where it forms the Ganges Delta.

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How is red cabbage used as indicater

Posted by Parteek Garg 5 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

Red cabbage indicator is a purple coloured solution that is used to test whether substances are acid or base. Red cabbage that is often found in homes can be used to prepare a solution that acts as pH indicator. The cabbage basically contains a pigment molecule called flavin or anthocyanin that changes colour depending on the acidity of the solution.

Normally, the purple solution turns red in colour when it combines with something acidic and it turns green in colour when it combines with a base. If the substance does not cause the colour to change then it is mostly neutral.

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Decomposition reaction

Posted by Řæw Måğmã 5 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Nishtha Sharma 5 years, 10 months ago

It ia a reaction in which the there are 1 reactant and 2 or more products

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Circumference of circle is 44 cm. Find area? (pie is 22/7)

Posted by Ayush Panda 5 years, 10 months ago

CBSE > Class 07 > Mathematics

2 answers

Jayesh Lingayat 5 years, 10 months ago

Ei3ekejjdjksjsghsoxdissghejsixhshsuxishshsbdvhxixishsvwvshxidhvwhxidh ikwjwbzhhqqqqqqqqqqqqqoqoqoaoaosudhsoxvwuskwjhdiw

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Yogita Ingle 5 years, 10 months ago

Circumference of circle ={tex}2\pi \: r{/tex}
2πr = 44cm²
so π×r=44/2
π ×r= 22cm
r=22cm×7/22
r=7cm
area of circle= {tex}\pi \: {r}^{2} {/tex}
= 22/7×7×7
{tex}=154cm^2 {/tex}

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Find the area of rhombus whose perimeter is 140cm and altitude is 2cm

Posted by Anisha Khan 5 years, 10 months ago

CBSE > Class 07 > Mathematics

2 answers

Suvadip Mandal 5 years, 10 months ago

Perimeter=140cm Side=140 divide 4 =35 Altitude=2cm Base=35cm Area=altitude multiply base 2 multiply 35 =70cm

0Thank You

Yogita Ingle 5 years, 10 months ago

Perimeter = 140cm
Side = 140 ÷ 4
= 35 cm
Altitude= 2cm
Base= 35cm
Area = Altitude × Base
= 2 × 35
= 70 cm

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Mind map

Posted by Esther Ramesh 5 years, 10 months ago

CBSE > Class 07 > Science

0 answers

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A rectangular piece of canvas measures 25 cm by 16 cm. A triangular piece,with base 14 cm and height 10 cm is cut off from the canvas. Find the area of the remaining pieces

Posted by Sameer Pawar 5 years, 10 months ago

CBSE > Class 07 > Mathematics

1 answers

Yogita Ingle 5 years, 10 months ago

Let's take out the area of rectangle and triangle.

Area of rectangle = Length × Breadth

=> area of rectangle = 25 × 16 = 400 cm²

And area of triangle = 1/2 × base × height

=> 1/2 × 14 × 12

= 7 × 12

= 84 cm²

Now what we can do for finding the remaining portion's area?

Think what would happen if we subtract the triangle's area from the rectangle's?

We will get the area of remaining portion!

So, area of remaining portion = area of rectangle - area of triangle

=> 400 - 84

= 316 cm²

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why in space we not use the pencil only costly pen

Posted by Mohammad Irfan 5 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Vivek Patel 5 years, 10 months ago

There is gravity in space. The tip or lead of the pencil can break and due to gravity it will roam in air and can damage humans and machines.

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Bhavyashish Narain Saxena 5 years, 10 months ago

Because in space there is no gravity and pencil can go anywhere so that is why In space we do not use pencil

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ANSWER

Explain the circuit

Posted by Gauri Nandhana 5 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 5 years, 10 months ago

Electric Circuit

An electric circuit is a path in which electrons (or current) flow.

If the circuit is incomplete or broken, the current doesn’t flow. This type of circuit is called an Open Circuit.
If the circuit is complete, the current flows. This type of circuit is called a Closed Circuit.

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Construct a line ab 7.6cm angle ABC is 60 degree

Posted by Soyam Agrawal 5 years, 10 months ago

CBSE > Class 07 > Mathematics

0 answers

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A road 10 m wide surrounds a circular park whose perimeter is 352 m. Find the area of the road

Posted by Jerifa Wahid 5 years, 10 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

How to solve exercise 12.3 1st questions

Posted by Chandrakala.V. Shettigar 5 years, 10 months ago

CBSE > Class 07 > Mathematics

1 answers

Shabnam Jahan 5 years, 10 months ago

If m=2 find the value of: m - 2 Solution: m=2 2-2= 0

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What is the meaning of hallow

Posted by Noor Bansal 5 years, 10 months ago

CBSE > Class 07 > Social Science

1 answers

Sneha A. 5 years, 10 months ago

Hole kind ogf thing inside something

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Lichens come every were

Posted by Tanishq Chandak 5 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

Lichen is an association between an alga and a fungus, in which the two organisms jointly form a thallus that is distinct from either partner. The fungal partner is known as mycobiont and the algal partner as the phycobiont. Both the partners are benefitted by the association. Such an association is known as symbiosis or mutualism. Lichens can withstand extremes of climate and, thus, are found everywhere ranging from hot deserts to chilly mountains. They can colonize rocks, but are also found growing on fertile soils. The tree trunks on hills are the most common sites of lichen growth. In some places, the growth is so luxuriant that lichens are used as fodder for cattle. But, lichens are most sensitive to air pollution and probably that is the reason they are not found near cities.

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Chapter 15 visualising solid shapes

Posted by Sujith Bablu 5 years, 10 months ago

CBSE > Class 07 > Mathematics