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Solve 3x + 4y =10 and 2x - 2y = 2

Posted by Manya N 2 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Amarjit Yadav 2 years, 3 months ago

3x+4y=10----(1) 2x-2y=2------(2) Now multiplying by 2 in equation (2) 3x+4y=10------(3) 4x-4y=4--------(4) Solve equation 3 and 4 7x=14 X=2 Now putting the value of x in equation 1 3(2)+4y=10 6+4y=10 -4y=10-6 -4y=4 Y= 1

Arjun Sharma 2 years, 4 months ago

3x + 4y = 10 -----(1) 2x-2y = 2 --------(2) Multiply (2) equation with 2 4x - 4y = 4 -------(3) Add 3 and 1 3x + 4y = 10 4x - 4y = 4 ----------------------- 7x = 14 X = 2 Similarly Y=1

Kartik Bisht 2 years, 4 months ago

X=2,y=1

ANSWER

Biological magnification is a result: of a)climate change b)shortage of food c)pollution d)extinction

Posted by Rutuja Deodhe 2 years, 4 months ago

CBSE > Class 10 > Science

3 answers

Alina Khan 2 years, 4 months ago

(c) is correct answer.

Shagun Shagun 2 years, 4 months ago

C option is correct

Garvita Sharma 2 years, 4 months ago

C

ANSWER

The angle of elevation of the top of the tower from a point c on the ground , which is 30m away from the foot of the tower is 30°.find the height of the tower

Posted by Lilly Verma 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

M Charith 2 years, 4 months ago

10_/3

ANSWER

If the polynomial 4x²k+2x+3 has equal and real roots then find the value of k

Posted by Gunjan Lodhi 2 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Srushti Nagane 2 years, 3 months ago

K = 1/12

M Charith 2 years, 4 months ago

K=12

Account Deleted 2 years, 4 months ago

D=b²-4ac=0 (2)²-4(2)(4k) =4-32k=0=8

ANSWER

What is parasitic

Posted by Manas Maurya 2 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Vikash Singh Lodhi 2 years, 4 months ago

Parasitic nutrition is a type of heterotrophic nutrition in which a living organism called parasite depend on a living host for their nutrition.

ANSWER

Kal mera paper he koi mujhe imp question de do yarr bhai plzz

Posted by Kunal Baghel 2 years, 4 months ago

CBSE > Class 10 > हिंदी ब

0 answers

ANSWER

In a parallelogram ABCD are three vertices A(3,4) B(3,8). C(9,8) then find the fourth vertices.

Posted by Sharad Soni 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

M Charith 2 years, 4 months ago

9,4

Sharad Soni 2 years, 4 months ago

Fourth vertices is (9,4)

ANSWER

हरिहर काका का अपहरण होने के बाद उनके भाइयों ने क्या किया ?

Posted by Nikhil Kumar Choudhary 2 years, 1 month ago

CBSE > Class 10 > हिंदी ब

1 answers

Garvit Sikaria 2 years, 4 months ago

Baith ke dukh manaya

ANSWER

Determiners.. fill in the blanks with a and the he is ___ dishonest man

Posted by Vaishnavi Cho 2 years, 4 months ago

CBSE > Class 10 > English Communicative (101)

2 answers

Siva Sharmi 2 years, 4 months ago

a

Shagun Shagun 2 years, 4 months ago

A

ANSWER

Check whether x3 - 3x2 + 5x = (x - 2)3 is quadratic equation or no

Posted by Afrin Khan 2 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Punit Singh 2 years, 4 months ago

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Punit Singh 2 years, 4 months ago

WELCOME

Punit Singh 2 years, 4 months ago

x3 - 3x2 + 5x = (x-2)3 x3 - 3x2 + 5x = x3 - 8 x3 - 3x2 + 5x - x3 = -8 - 3x2 + 5x - = -8 -3x2 + 5x + 8 = 0 ( both side multiply by minus ) 3x2 - 5x - 8 = 0 {this is a quadratic equation} : Yes

ANSWER

Transportation in xylem

Posted by Kanan Jindal 2 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Kanu Choudhary 2 years, 4 months ago

Xylem transports water in plants

Payal Baisoya 2 years, 4 months ago

Sir please send homework

ANSWER

Ch 3 electronic dot structure

Posted by Niharika Kumari 2 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Rajnish Kumar 2 years, 4 months ago

In India

Rajnish Kumar 2 years, 4 months ago

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ANSWER

Two identical wires one of nichrome and other of copper are connected in series and a current I is passed through them state the change observed in the temperature of the two wire justify your answer state the law which explain the above observation

Posted by Bhavesh Agarwal 2 years, 4 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is the meant by amphoteric oxidise give two example of this and write the equation of this reaction with acid and base

Posted by Prince Bhai V 2 years, 4 months ago

CBSE > Class 10 > Science

3 answers

Parteek Kashyap 2 years, 4 months ago

When the oxide are Show the nature of Acid and Base it is called a Amphoteric oxide Ex - Zno and Alo

Soham Bhomle 2 years, 4 months ago

Amphoteric oxides are those oxdies which reacts with both acids as well as bases.

Prince Bhai V 2 years, 4 months ago

Answer

ANSWER

Give reason Sodium, Potassium and the Lithium are stored under oil

Posted by Prince Bhai V 2 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Sharvan Verma 2 years, 3 months ago

Because they are highly reactive metals

Soham Bhomle 2 years, 4 months ago

Because they Highly reactive metals, if they're kept in open in air, it can catch fire...

ANSWER

Ch 13

Posted by Sagar Kushwaha 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sagar Kushwaha 2 years, 4 months ago

Q number 5

ANSWER

If the quadratic equation px² + 3x + q = 0 has two roots -1 and -2 then the value of q-p

Posted by ****0779 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

M Charith 2 years, 4 months ago

=1

Nitesh Pal 2 years, 4 months ago

2q+1

ANSWER

If tanθ = a/b, then the value of asinθ+bcosθ/asinθ-bcosθ is

Posted by ****0779 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Arshdeep Singh 2 years, 4 months ago

0

ANSWER

If the nth term of an AP is given by a n=2n-1, then sum of its 15 terms is

Posted by ****0779 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Shiv Shankar Kumar 2 years, 4 months ago

Tn=2n-1 :T1=2×1-1=1 :T2=2×2-1=3 :common difference=d=T2-T1=3-1=2 Tn=a+(n-1)d :T1=a+(1-1)2=1 :a+0=1 :a=1 :Sn=n÷2[2a+(n-1)d] S15=15÷2[2×1+14×2] :=15÷2×30 =15×15=225

ANSWER

If the zeroes of polynomial p(x) = 2x^2-7x+k are reciprocal of each other , then the value of K is (a) 1 (b) 2 (c) 3 (d) 4

Posted by ****0779 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

M Charith 2 years, 4 months ago

(b) 2

ANSWER

If am is not equal to bL then the pair of linear equation ax+by=c and Lx+my=n has

Posted by ****0779 2 years, 4 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If HCF of 144 and 180 is expressed in the form 13m-3, find the value of m

Posted by ****0779 2 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Dhruvi Maheshwari 2 years, 4 months ago

M=3

Yogitha Rajan 2 years, 4 months ago

144=2×2×2×2×3×3 180=2×2×3×3×5 HCF=2×2×3×3 HCF=36 HCF=13m-3 13m-3=36 13m=36+3 m=39÷13 m=3

Yogitha Rajan 2 years, 4 months ago

m=3

ANSWER

https://mycbseguide.com/dashboard/challenge/testpaper/1431a866-ac20-4a22-9ce2-ca2fcd79491f/take-test?mode=to-me

Posted by Darshan Patil 2 years, 4 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Volume of sphere=?

Posted by Subhash Kumar 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Shreshth Shukla 2 years, 4 months ago

4/3 πr3

ANSWER

How many cards?

Posted by Subhash Kumar 2 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Pooja Sharma 2 years, 4 months ago

52

Muskan Negi 2 years, 4 months ago

52 cards

Dasharath Khatik 2 years, 4 months ago

a+b ka hole square

ANSWER

What are the value of Sin90 and Cos90 ?

Posted by Subhash Kumar 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Muskan Negi 2 years, 4 months ago

1&0 are the value of sin90 & cos90

Adarsh Yadav 2 years, 4 months ago

0 and 1 respectively

ANSWER

Describe any 3 renewable resources of energy and why is it essential

Posted by Arpita Patel 2 years, 4 months ago

CBSE > Class 10 > Social Science

1 answers

Ragini Kumari 2 years, 4 months ago

I don't know

ANSWER

What is the tone of the writer in the given lines It is important only to make new laws to ensure the purity of water but also to realise the urgency of implemnting then ruthlessly if we are to avoid a national health disaster cutting across the barrier between towns and the country side

Posted by Radha Sharma 2 years, 4 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

Who invented google?

Posted by Muskan Negi 2 years, 4 months ago

CBSE > Class 10 > Reasoning & Mental Ability

5 answers

Vansh Kumar 2 years ago

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Sonali Kumari 2 years ago

Sunder pichai

Raunak Yadav 2 years ago

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Raunak Yadav 2 years ago

Mai

Bhawana Sharma 2 years, 2 months ago

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

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ANSWER

Who spread idea of nationalism in Europe?

Posted by Aman Yadav 2 years, 4 months ago

CBSE > Class 10 > Social Science

5 answers

Aryan Durge 2 years, 2 months ago

French revolution

Mahak Maheshwari 2 years, 4 months ago

French

Rahul Hospet 2 years, 4 months ago

French armies

Zeenat Afreen 2 years, 4 months ago

Napoleon armies

Vagisha Mandal 2 years, 4 months ago

France

ANSWER

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