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Harshit
Subject: Maths
, asked on 9/5/18
Solve x-y=3 and 4x-y=60 by substitution and find value of X and y
Answer
7
Muskaan Jain
Subject: Maths
, asked on 8/5/18
Solve this:
Answer
1
Neha
Subject: Maths
, asked on 7/5/18
Ques.
Draw the graph of the following pair of linear equations in two variable graphically.
1) 2x-3y+13=0, 3x-2y+12=0
Answer
1
Neha
Subject: Maths
, asked on 7/5/18
Q. Solve x and y
$\frac{2x}{a}+\frac{y}{b}=2and\frac{x}{a}+\frac{y}{b}=4$
Answer
8
Neha
Subject: Maths
, asked on 5/5/18
Pls answer 18th question 2nd one??
Q.18. Solve :
2)
$\frac{bx}{a}+\frac{ay}{b}={a}^{2}+{b}^{2},x+y=2ab$
(x = y = ab)
Answer
1
Neha
Subject: Maths
, asked on 5/5/18
Pls answer
$16.2yearsagoafatherwas5timesasoldashisdaughter.2yearslater,hisagewillbe8more\phantom{\rule{0ex}{0ex}}thenthreetimetheageofthedaughter.Findtheirpresentages.\phantom{\rule{0ex}{0ex}}(Father-42years,Daughteris10years)\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}19.Onsellingteasetat5\%lossandalemonsetat15\%gain,acrockerysellergainsRs7.Ifhe\phantom{\rule{0ex}{0ex}}sellstheteasetat5\%gainandthelemonsetat10\%gain,hegainsRs13.Findtheactual\phantom{\rule{0ex}{0ex}}priceoftheteasetandthelemonset.\phantom{\rule{0ex}{0ex}}\left(teaset,Rs100andthelemonset,Rs80\right)$
Pls answer
Answer
2
Neha
Subject: Maths
, asked on 5/5/18
Explain 15 th question
Q15. 8 men and 12 boys can finish a piece of work in 10 days while 6 men and 8 boys can finish the same in 14 days. Find the time taken by 1 man alone to finish the work and that taken by one boy alone to finish the work.
Answer
1
Neha
Subject: Maths
, asked on 4/5/18
Solve this:
Q.12. A group consists of honest and extremely kind people. If 2 honest people and 7 extremely kind people can finish a piece of work in 4 days while 4 honest and 4 extremely kind people can finish it in 3 days then find the time taken by one honest people alone and that by extremely kind people alone to finish the work? Which of the above values you prefer?
Answer
1
Neha
Subject: Maths
, asked on 4/5/18
Solve
$\mathbf{15}\mathbf{.}\mathbf{}\mathbf{}Solvethefollowingpairoflinearequationsbycrossmultiplicationmethod:\phantom{\rule{0ex}{0ex}}x+2y=2\phantom{\rule{0ex}{0ex}}x-3y=7\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\mathbf{16}\mathbf{.}\mathbf{}Solveforx:\phantom{\rule{0ex}{0ex}}\sqrt{3}{x}^{2}-2\sqrt{2}x-2\sqrt{3}=0\phantom{\rule{0ex}{0ex}}$
Answer
1
Neha
Subject: Maths
, asked on 3/5/18
Explain 9 th question??
Q.9. Find the values of m and n for which the following system of linear equations have infinitely many solutions.
a) 3x + 4y = 12
(m + n) x + 2(m - n) y = 5m - 1
(m = 5, n = - 1)
b) 2x - 3y = 7
(k + 1) x + (1 - 2k) y = 5k - 4.
(k = 5)
Answer
1
Neha
Subject: Maths
, asked on 3/5/18
Solve this:
$7.Solve:\frac{2}{3x+2y}+\frac{3}{3x-2y}=\frac{17}{5}\phantom{\rule{0ex}{0ex}}\frac{5}{3x+2y}+\frac{1}{3x-2y}=2\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}8.Solve:\frac{1}{2\left(x+2y\right)}+\frac{5}{3\left(3x-2y\right)}=\frac{-3}{2}\phantom{\rule{0ex}{0ex}}\frac{5}{4\left(x+2y\right)}-\frac{3}{5\left(3x-2y\right)}=\frac{61}{60}$
Answer
1
Aaradhya Verma
Subject: Maths
, asked on 2/5/18
Solve this :
Q.
After covering 30 km there is some defects in rail engine and that's why it's speed reduce to
${\frac{4}{5}}^{th}$
and that's why it reaches it's destination 45 min late. Had it happen after covering 18 km more the train reaches 9 min. earlier. Find the speed of train and distance of journey.
Answer
1
Aaradhya Verma
Subject: Maths
, asked on 2/5/18
Solve this
$AsaystoB.Iam5timesasoldasyouwerewhenIwasasoldasyouarenow.\phantom{\rule{0ex}{0ex}}Ifthesumoftheirpresentageis64years.Findtheirages.\phantom{\rule{0ex}{0ex}}$
Answer
1
Uday Pundeer
Subject: Maths
, asked on 1/5/18
Please help!!
Q3. Solve the following system of equations by using elimination method
$\frac{1}{2\mathrm{x}}-\frac{1}{\mathrm{y}}=-1\mathrm{and}\frac{1}{\mathrm{x}}+\frac{1}{2\mathrm{y}}=8\mathrm{where}\mathrm{x}\ne 0,\mathrm{y}\ne 0.$
Answer
4
Aditya Vardhan
Subject: Maths
, asked on 1/5/18
The pair of linear equations 76 X + k y, 14 x + 2 = k + 1 has many solutions find the value of k.
Answer
1
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What are you looking for?

Ques.Draw the graph of the following pair of linear equations in two variable graphically.1) 2x-3y+13=0, 3x-2y+12=0

Q.18. Solve :

2) $\frac{bx}{a}+\frac{ay}{b}={a}^{2}+{b}^{2},x+y=2ab$

(x = y = ab)

$16.2yearsagoafatherwas5timesasoldashisdaughter.2yearslater,hisagewillbe8more\phantom{\rule{0ex}{0ex}}thenthreetimetheageofthedaughter.Findtheirpresentages.\phantom{\rule{0ex}{0ex}}(Father-42years,Daughteris10years)\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}19.Onsellingteasetat5\%lossandalemonsetat15\%gain,acrockerysellergainsRs7.Ifhe\phantom{\rule{0ex}{0ex}}sellstheteasetat5\%gainandthelemonsetat10\%gain,hegainsRs13.Findtheactual\phantom{\rule{0ex}{0ex}}priceoftheteasetandthelemonset.\phantom{\rule{0ex}{0ex}}\left(teaset,Rs100andthelemonset,Rs80\right)$ Pls answer

Q15. 8 men and 12 boys can finish a piece of work in 10 days while 6 men and 8 boys can finish the same in 14 days. Find the time taken by 1 man alone to finish the work and that taken by one boy alone to finish the work.

Q.12. A group consists of honest and extremely kind people. If 2 honest people and 7 extremely kind people can finish a piece of work in 4 days while 4 honest and 4 extremely kind people can finish it in 3 days then find the time taken by one honest people alone and that by extremely kind people alone to finish the work? Which of the above values you prefer?

$\mathbf{15}\mathbf{.}\mathbf{}\mathbf{}Solvethefollowingpairoflinearequationsbycrossmultiplicationmethod:\phantom{\rule{0ex}{0ex}}x+2y=2\phantom{\rule{0ex}{0ex}}x-3y=7\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\mathbf{16}\mathbf{.}\mathbf{}Solveforx:\phantom{\rule{0ex}{0ex}}\sqrt{3}{x}^{2}-2\sqrt{2}x-2\sqrt{3}=0\phantom{\rule{0ex}{0ex}}$

Q.9. Find the values of m and n for which the following system of linear equations have infinitely many solutions.

a) 3x + 4y = 12

(m + n) x + 2(m - n) y = 5m - 1

(m = 5, n = - 1)

b) 2x - 3y = 7

(k + 1) x + (1 - 2k) y = 5k - 4.

(k = 5)

$7.Solve:\frac{2}{3x+2y}+\frac{3}{3x-2y}=\frac{17}{5}\phantom{\rule{0ex}{0ex}}\frac{5}{3x+2y}+\frac{1}{3x-2y}=2\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}8.Solve:\frac{1}{2\left(x+2y\right)}+\frac{5}{3\left(3x-2y\right)}=\frac{-3}{2}\phantom{\rule{0ex}{0ex}}\frac{5}{4\left(x+2y\right)}-\frac{3}{5\left(3x-2y\right)}=\frac{61}{60}$

Q.After covering 30 km there is some defects in rail engine and that's why it's speed reduce to ${\frac{4}{5}}^{th}$ and that's why it reaches it's destination 45 min late. Had it happen after covering 18 km more the train reaches 9 min. earlier. Find the speed of train and distance of journey.$AsaystoB.Iam5timesasoldasyouwerewhenIwasasoldasyouarenow.\phantom{\rule{0ex}{0ex}}Ifthesumoftheirpresentageis64years.Findtheirages.\phantom{\rule{0ex}{0ex}}$

Q3. Solve the following system of equations by using elimination method

$\frac{1}{2\mathrm{x}}-\frac{1}{\mathrm{y}}=-1\mathrm{and}\frac{1}{\mathrm{x}}+\frac{1}{2\mathrm{y}}=8\mathrm{where}\mathrm{x}\ne 0,\mathrm{y}\ne 0.$