Question

If x = √7/5 and 5/x = p √7, then value of p


7/25


25/7


7


25 ​

Answer 1

Answer:

p=(25/7)

x= sqrt(7)/5

substitute into second equation.

{5/(sqrt 7/5)}=p sqrt (7)

invert and multiply

(25/sqrt (7))=p (sqrt (7))

multiply both sides by sqrt (7)

25 =7p

divide by 7

(25/7)=p

Check

sqrt (7)=2.65

x=2.65/5, or 0.53

5/0.53 is 9.45

(25/7)*2.65=9.46

This is the same given that sqrt (7) is being rounded.