Question

if (1, 5) is a solution of equation kx+4y=25 then what is value of k​

Answer 1

Answer:

5

Step-by-step explanation:

k(1)+4(5) = 25

k= 25-20

k =5......

Answer 2

Step-by-step explanation:

kx+4y=25 and point (1, 5) is a solution of the given equation.

to find the value of k

since point (1, 5) is a solution of the equation, then it must satisfy the given equation which means if we substitute x = 1 and y = 5, LHS must be equal to RHS.

=> k (1) + 4 (5) = 25

=> k + 20 = 25

=> k = 25 - 20

=> k = 5