Question

. If one-seventh of a number k is multiplied with itself which in result give the number 7, then find the value of k

Answer 1

Answer:

k = 7

Step-by-step explanation:

required equation :     $\frac{1}{7\\}$ k x k = 7

$\frac{1}{7}$ $k^{2}$ = 7

taking $\frac{1}{7}$ to right side of the equation

$k^{2}$ = 7 x 7      (reciprocal of $\frac{1}{7}$)

$k^{2}$ = 49

k = $\sqrt{49}$

k = 7

                                 

hope this will help you