97 is the rational number
Answer:
18
Step-by-step explanation:
16 × 9 = 8 × x
x = 18
<em>If the radius of a sphere is doubled, the surface area becomes four times the original surface area.</em>
For this case we have the following system of equations:

Equating the values of y we have:

From here, we can clear the value of x.
We have then:

Then, we look for the value of y.
For this, we substitute x in any of the equations:
Answer:
The ordered pair solution of the system of equations, is given by:
Y=(1/5)^x would be the only equation demonstrating decay of these