MY CART (5)
ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price:

There are no items in this cart.
Continue Shopping
                   

How many pairs of (x,y) satisfy the equations 3x+6y=21 and 4x+8y=16

3 years ago

Share

Answers : (4)

                                        

as 3/4=6/8  so these lines are parallel, i.e. have no common point, so 0 pairs of (x,y) will satisfy this

3 years ago
                                        

3x + 6y = 21


or, x+2y=7


 


4x+8y=16


x+2y=4


 


Inconsistent equations. No solution.

3 years ago
                                        

dear suresh,


these two equations reaemble two parallel lines as a1/a2=b1/b2not equal to c1/c2.


so these two lines never intersect and thus have no solution

one year ago
                                        

no solution since they are parallel lines
please post some tough questions next time
:)

one year ago

Post Your Answer

More Questions On Algebra

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
Find the greatest term in the expansion of (7-5x)^2 where x=2/3 Please explain the steps. Thankyou in advance.
 
 
Hello Student. Please find the solution (7-5x)^2 = 49 + 25x^2 – 70x so first term = 49 second term = -70*2/3 third term = 25 x^2 = 25*4/9 = 11.11 So 49 is greatest...
  img
Nishant Vora 4 months ago
 
Sorry sir.. i am extremely sorry.. Actually i typed in the wrong question.. it was (7-5x)^11, where x=2/3.. I am extremely sorry once again. Sir please give me the correct answer for this.
 
Swagat Bordoloi 4 months ago
2x=10
 
 
x=5 because if we divide both sides by 2 we get x=5 aFinal ANs: x=5
 
MOHAMMED ANAS 2 months ago
 
x=5 because if we divide both sides by 2 we get x=5 aFinal ANs: x=5
 
MOHAMMED ANAS 2 months ago
 
x=5
 
karthik 2 months ago
the number of words in SUCCESS in which the consonents appear in alphabetic order is? please give detail answer so that i can solve all alpabetic arrangement questions. thanks
 
 
Hello student, In the above answer i mentioned number of words having consonants in alphabetical order in the word SUCCESS and that is what you have asked also previously.please check your...
  img
SHAIK AASIF AHAMED 6 months ago
 
Hello student, Please find the answer to your question below In any rearrangement of the word SUCCESS, there are 5!/3!2!=10 ways to permutate theconsonents in the word. Only 1 of out these...
  img
SHAIK AASIF AHAMED 6 months ago
 
i asked how many words are there before success in dictonary
 
vineet nimesh 6 months ago
what is the periof of modulus of sin(x)cos(x)
 
 
Ans: Hello Student, Please find answer to your question below Period of f(x) = sin2x Since we are taking the modulus, then negatib=ve part of the graph will come on +ve side which is similar...
  img
Jitender Singh 7 months ago
 
period of sinx and cos x is 2pi modulus of sinx *cosx =2*sinxcosx/2 =2*modulus of sin2x period of sin2x=2pi/2=pi thus its period is pi
  img
Sunil Kumar FP 7 months ago
View all Questions »