Question

if the value of k(5,7)is a solution of equation13x-4y=4k
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Answer 1

Answer: since (5,7) is its solution

then here x = 5 and y = 7

putting the values of x and y, we get

13 x - 4y = 4k

13 * 5 - 4 * 7 = 4k

65 - 28 = 4k

37 = 4k

k = 37/4

k = 9.25

hence your ans is 9.25 .

Answer 2

Answer:

Step-by-step explanation: x = 5 , y = 7

Putting the values of x and y , we get

13×5 - 4 × 7 = 4k

75 - 28 = 4k

47 = 4k

47÷4 = K

K = 11.75