Question

y varies directly as square of x'. When y = 10 then x = 4. Find the value of x when y = 35.
(a) 2.5
(b) 6
(c) -2.5
(d) -7.4​

Answer 1

Answer:

6 is your answer

Step-by-step explanation:

6 is your answer

Answer 2

Step-by-step explanation:

• So the question is  y varies directly as the square of x. So we get
•           So y ά x^2
•        Let y = kx^2 (k is a variation constant)
•        So y = 10 when x = 4, substituting the same we get
•               10 = k (4)^2
•                16 k = 10
•             So k = 10/16
•                Or k = 5/8
• So substituting we get the equation as
•          So y = 5/8 x^2
• Now putting y = 35 we get
•              35 = 5/8 x^2Ѵ
•            So 5/8 x^2 = 35
•              Or x^2 = 35 x 8 / 5
•               Or x^2 = 56
•                  Or x = sq root 56
•                  Or x = 7.48

Reference link will be

https://brainly.in/question/23075220