Question

Let R = qs4. When s=8, R=16. When s=10, R is equal to
A. 20
B. 21
C. 11
D. 14

Answer 1

s=8
R=16



AND WHEN
s=10
R=20

Option A will be the right answer

Answer 2

Answer:

The value of R is 39.0625  when s=10.

Step-by-step explanation:

Given : Let $R = qs^4$. When s=8, R=16.

To find : When s=10, R is equal to ?

Solution :

The formula representing the situation is $R = qs^4$

When s = 8 and R = 16  we find the value of q,

 $16= q(8)^4$

 $16= q\times 4096$

 $q=\frac{16}{4096}$

 $q=\frac{16}{4096}$

Now, Substitute back in equation,

$R =\frac{16}{4096}\times s^4$

Put s=10 in the equation to find R,    

$R =\frac{16}{4096}\times 10^4$

$R =\frac{16}{4096}\times 10000$

$R =39.0625$

Therefore, The value of R is 39.0625  when s=10.