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

2 years ago
                                        

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

2 years 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
can anybody solve this que
 
 
Where is the question
 
yaswanth 21 days ago
 
Wht is d question ?
 
Drake 21 days ago
plz. answer the attached question of probability. and also name the rule or theorem that will be used. thanks.
 
 
hii You can use Baye’s Theorem of Probability in order to solve this question
  img
Sourabh Singh one month ago
 
I tried using bayes theorem but there is a little confusion.if u can plz tell me the value of P(E1) and P(E2) P(A/E1) and P(A/E2) it will be of great help. also tell which is the correct...
 
sufi digital one month ago
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 6 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 6 months ago
Bitsat practice paper 13, Q. no. 7
 
 
write here the question
  img
Suraj Prasad 12 days ago
what is calculus ??please explain it briefly.
 
 
Ans: Hello student, Please find the answer to your question below Calculus is the mathematical study of change . It has two major barnches differential calculus (concerning rates of change...
  img
Jitender Singh 8 months ago
 
Dear student, Calculus is the branch of Mathematics which helps in computing results for dynamical systems. Calculus helps one in finding how one physical quantity varies as a function of...
  img
Sumit Majumdar 8 months ago
find dy/dx when y= s in^-1(2^(x+1)/ 1+ (4)^x)
 
 
Ans: Hello Student, Please find answer to your question below Using the chain rule
  img
Jitender Singh 9 months ago
View all Questions »