<em>If the radius of a sphere is doubled, the surface area becomes four times the original surface area.</em>
Answer:
Step-by-step explanation:
let present age of
Dylan=x
Renee=y
x+y=57
9 years ago
x-9=2(y-9)=2y-18
x=2y-18+9=2y-9
so 2y-9+y=57
3y=57+9=66
y=66/3=22
x+22=57
x=57-22=35
Dylan's present age=35 years
The equation in slope-intercept form is:

Further explanation:
The standard slope-intercept form is:

Given equation is:

In order to bring the equation in slope-intercept form we have to isolate y on left hand side of equation
So,
<u>Adding 2x on both sides</u>

<u>Dividing both sides by 3</u>

<u>Simplifying</u>

The equation in slope-intercept form is:

Keywords: Slope-intercept form, linear equation
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