Question

Find k for the unique solution of equations Kx + y = 10 and ky - X = 7

Answer 1

hey

the value of k is 1

Answer 2

Answer:

Step-by-step explanation:

Therefore, 2.5, 3.5 and x are in continuous proportion.

2.53.5 = 3.5x

⟹ 2.5x = 3.5 × 3.5

⟹ x = 3.5×3.52.5

⟹ x = 4.9 g