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

Q u e s t i o n: Anwar think of a number. if he take away 7 from 5\2 of the number the result is 23 Answer.. 5/2x -7 =23 5/2x=23+7=30(5/2=30*2=60) 5/2x=30 x=60/5=12

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Gaurav Seth 5 years, 1 month ago

Q u e s t i o n: Anwar think of a number. if he take away 7 from 5\2 of the number the result is 23

Answer:

Let the number which Anwar thinks of be x

Then, 5/2 of the number is

So, the equation is

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Prince Rao 5 years, 1 month ago

Let the no be x 5/2x-7 = 23

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The sum of two rational number is -7. Find other

Posted by Aishwarya Bips 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Srinivas Neredukomma 5 years, 1 month ago

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Now represent 9+2,9+(-1) and 9+(-3) on the number line

Posted by K.Gopichandu Chandu 5 years, 1 month ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

What will be dissing off of the product if you be multiplication of negative integer and 9 positive integer

Posted by Neeraj Yadav 5 years, 1 month ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

What will be dissing off of the product if you be multiplication of negative integer and 9 positive integer

Posted by Neeraj Yadav 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Meghna Thapar 5 years ago

The product of -90 integers x 9 integers = - 810 integers. So the answer is positive integer. Because the negative integers on multiplication become positive so the end result will also be positive. The sign of the product will be positive because there 80 negative integers which is an even number so it will nullify the negative so positive multiplied by positive will always be positive.

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Can you explain me please maths because I am better in maths but I have a problem in maths simple equations

Posted by Varnika Parte 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Tarun Kumar Jha 5 years, 1 month ago

Yes i can

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Is anyone can explain me q no 2 of ex. 6.4

Posted by Sufiya Naaz 5 years, 1 month ago

CBSE > Class 07 > Mathematics

2 answers

Amarabati Parida 5 years, 1 month ago

Q no.2 -If we take any point O in the interior of a triangle PQR and join OR, OP, OQ. Then, we get three triangles ΔOPQ, ΔOQR and ΔORP is shown in the figure below. We know that, The sum of the length of any two sides is always greater than the third side. (i) Yes, ΔOPQ has sides OP, OQ and PQ. So, OP + OQ > PQ (ii) Yes, ΔOQR has sides OR, OQ and QR. So, OQ + OR > QR (iii) Yes, ΔORP has sides OR, OP and PR. So, OR + OP > RP

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Amarabati Parida 5 years, 1 month ago

The sum of the length of any two sides is always greater than the third side. Now consider the ΔABC, Here, AB + BC > CA … [equation i] Then, consider the ΔBCD Here, BC + CD > DB … [equation ii] Consider the ΔCDA Here, CD + DA > AC … [equation iii] Consider the ΔDAB Here, DA + AB > DB … [equation iv] By adding equation [i], [ii], [iii] and [iv] we get, AB + BC + BC + CD + CD + DA + DA + AB > CA + DB + AC + DB 2AB + 2BC + 2CD + 2DA > 2CA + 2DB Take out 2 on both the side, 2(AB + BC + CA + DA) > 2(CA + DB) AB + BC + CA + DA > CA + DB I think the process was too lengthy, but I hope you understand ?

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Lesson 1,2,3,4,5,

Posted by Anand Jeena 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Anand Jeena 5 years, 1 month ago

90+95-12+180-60

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ANSWER

Exercise 1.3 exercise ecplain

Posted by Waffa Thamim 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Iqra Syeda 5 years, 1 month ago

16+564

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1+2+3+4+5+6+7+8+9+0+1

Posted by Sasd Sdsa 5 years, 1 month ago

CBSE > Class 07 > Mathematics

3 answers

Saurav Bisht 5 years, 1 month ago

Answer total number =46

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Anand Jeena 5 years, 1 month ago

46 ha

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Tejesh Banit 5 years, 1 month ago

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2/7(x-9)x/3=3....?

Posted by Ansh Parihar 5 years, 1 month ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

What is estimated lenght of A and B

Posted by Parishka Singh 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Meghna Thapar 5 years ago

Length is the term used for identifying the size of an object or distance from one point to Length is a measure of how long an object is or the distance between two points. ... The length of an object is its extended dimension, that is, its longest side. For example, the length of the ruler in the picture is 15 cm. Hold the measuring tape from the side of your low waist to the floor. This would ne the measurement if you are wearing flats. Now go up on your toes depending on the height of heels you are planning on wearing and take the measurement again by sliding the measuring tape down to the floor again.

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Hy guess how are you

Posted by Aradhya Jangid 5 years, 1 month ago

CBSE > Class 07 > Mathematics

3 answers

Anjali Rana 5 years, 1 month ago

Fine and what about you

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Parishka Singh 5 years, 1 month ago

What is estimated lenght of A and B

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Vinay.K Kunde 5 years, 1 month ago

Vdirvceudktvdjrlr tir

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A man spent 2/5 of the money he had and left with 90 how much he had initially.

Posted by Bipin Solanki 5 years, 1 month ago

CBSE > Class 07 > Mathematics

4 answers

Tejesh Banit 5 years, 1 month ago

Step - by - step explanation: Let total amount be Rs x He spent= Rs 2/5x Therefore, amount left with him is = Rs 3/5x amount left with him =Rs 90 3 / 5 * x =90 x=150

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Gaurav Seth 5 years, 1 month ago

Step - by - step explanation:

Let total amount be Rs x

He spent= Rs 2/5x

Therefore, amount left with him is = Rs 3/5x amount left with him

=Rs 90 3 / 5 * x =90 x=150

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Vinay.K Kunde 5 years, 1 month ago

E. E tte in a timely is the tree up

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Vinay.K Kunde 5 years, 1 month ago

Zrirvdidkdbdkdod

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Solve y+4=

Posted by Manoj Dhari Dhari 5 years, 1 month ago

CBSE > Class 07 > Mathematics

4 answers

Shakambhari Shakambhari 5 years, 1 month ago

5 is the answer

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Shakambhari Shakambhari 5 years, 1 month ago

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Shakambhari Shakambhari 5 years, 1 month ago

I dont know

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Manoj Dhari Dhari 5 years, 1 month ago

Give me the answer

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Solve y+4=-4 give me the answer

Posted by Manoj Dhari Dhari 5 years, 1 month ago

CBSE > Class 07 > Mathematics

3 answers

Ansh Parihar 5 years, 1 month ago

Y= -8

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Kashvi Saxena 5 years, 1 month ago

Htkrkdjfjrrir

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Harsh It Ha Ks 5197616 5 years, 1 month ago

Y=-4-4 Y=-8

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Solve y+4=-4

Posted by Manoj Dhari Dhari 5 years, 1 month ago

CBSE > Class 07 > Mathematics

3 answers

Anand Jeena 5 years, 1 month ago

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Sontosh Singh 5 years, 1 month ago

O answer

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Manoj Dhari Dhari 5 years, 1 month ago

Answer

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A cubical box has each edge 10cm and another cubicolbox is 12.5cm long ,10cm wide and 8cm (1) which box has the greater lateral surface area and how much? (2) which box has the smaller total surface area and by how much?

Posted by Asmit Kumar Asmit Raw 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Gaurav Seth 5 years, 1 month ago

(i) Lateral surface area of cubical box = 4a²= 4 x 10² = 400 cm²

Lateral surface area of cuboidal box = 2h (l + b)

= 2 x 8(12.5 +10) = 16 X 22.5 = 360 cm²

Thus, lateral surface area of cubical box is greater by

(400 cm²- 360 cm²) = 40 cm²

(ii) Total surface area of cubical box = 6a² = 6 x 10² cm² = 600 cm²

Total surface area of cuboidal box = 2 (lb + bh + hl)

= 2(12.5 x 10 + 10 x 8 + 8 x 12.5)

= 2(125 + 80 + 100) = 2 x 305cm²= 610 cm²

Thus, total surface area of cuboidal box is greater by (610 - 600) cm²

= 10 cm²

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ANSWER

bag contains total 14 balls in which 5 are white balls and 9 are red balls. One ball is drawn at random from the bag find the probabiltu

Posted by Gitesh Saini 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Gaurav Seth 5 years, 1 month ago

Q: A bag contains 5 white ball and 9 red balls one ball is drawn at random from the bag find the probability of getting a White ball

Solution:

Step-by-step explanation:

Given a bag contains 5 white ball and 9 red balls. so total

balls in the bag is 14. according to the given statement a ball is drawn at random from the bag .

since there are total 5 white balls, so the probability of getting a white ball is 5 by 14.

[S] equals to 14 and [A]= 14. so probability of getting a white ball is 5 by 14.

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Find 8*4.6

Posted by Hari Mistry 5 years, 1 month ago

CBSE > Class 07 > Mathematics

2 answers

Vinay.K Kunde 5 years, 1 month ago

Eudjd Bob dpnd sulfhydryl hd,ebjs

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Hari Mistry 5 years, 1 month ago

Answer is 36.8

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The angle which is 4 times it's complement is?

Posted by Santok Odedra 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Gaurav Seth 5 years, 1 month ago

The two angles are complementary angles, hence their sum is 90 degrees.

The one angle is 4 times its complement. (given)

Then, if the complementary angle is x, then the other angle will be 4x.

Thus, we have

x + 4x = 90

5x = 90

x = 18

4x = 72

Thus, the measures of two angles are 18 and 72.

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(-15)×2×(-8)×(-1)

Posted by Ramiz Rahman 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

(-15)×2×(-8)×(-1)

= (-30) × 8

= - 240

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Integer succeeded -9 is?

Posted by Santok Odedra 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

Integer succeeded -9 is -8

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2/9 into 100 please tell me the answer.

Posted by Tanuja Behera 5 years, 1 month ago

CBSE > Class 07 > Mathematics

2 answers

Chag Kavyaa 5 years, 1 month ago

0.18 is your answer

1Thank You

Gaurav Seth 5 years, 1 month ago

2 / 9 x 100

]2 / 9] x [2 x 50]

2 will cut

Answer = 9 / 50

0.18

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When i take subtracted 11 form twice a number ,the result was 15

Posted by Aaryan Abhale 5 years, 1 month ago

CBSE > Class 07 > Mathematics

2 answers

Prince Rao 5 years, 1 month ago

Let the no. be x A. T. Q. 2x-11 = 15

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Prince Rao 5 years, 1 month ago

Let the no. be x A. T. Q. - 2x-11 = 15

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Write the answer (-4)+7=??

Posted by Janhvi Mishra 5 years, 1 month ago

CBSE > Class 07 > Mathematics

2 answers

Maheshwar Gajjam ??? 5 years, 1 month ago

(-4)+7=3

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Maheshwar Gajjam ??? 5 years, 1 month ago

(-4)+7=?? ??=3 Answer is = 3 (-4)+7=3

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ANSWER

Write the results connecting the lengths of the sides of a triangle?

Posted by Alona Tomy 5 years, 1 month ago

CBSE > Class 07 > Mathematics

1 answers

Meghna Thapar 5 years ago

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. Relationship between measurement of the sides and angles in a triangle: The largest interior angle and side are opposite each other. The same rule applies to the smallest sized angle and side, and the middle sized angle and side.

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