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


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





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
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
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...
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
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...
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...
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
Jitender Singh 9 months ago
View all Questions »