Question

Answer the above question​

Answer 1

Answer:

X can have two values - 30 and 70

Step-by-step explanation:

1/21 = (x+100-x) /(x)(100-x). = 100/ (100x-x^2)

Then, cross multiplying, we get, 2100 = 100x - x^2

x^2 - 100x +2100 =0

(x-30)(x-70) = 0

x=30 or x=70

Answer 2

Step-by-step explanation:

hope it helps you....