N+12=4 what is the process of the equation
2 answers:
Hey there!
Here is your question -
In this equation, you're looking for n alone. To keep the variable alone, you have to do the opposite of what's happening to the variable.
In this equation, 12 is being added to n. The opposite of that is subtracting 12.
Subtract 12 from both sides -
Your answer is -8.
Hope this helps! :)
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Answer:
22670.8 cm³/min
Step-by-step explanation:
Given:
Radius of the balloon at a certain time (r) = 19 cm
Rate of growth of radius is,
The rate at which the air is pumped in the balloon can be calculated by finding the rate of increase in the volume of the balloon.
So, first we find the volume of the sphere in terms of 'r'. As the balloon is spherical in shape, the volume of the balloon is equal to the volume of a sphere. Therefore,
Volume of balloon is given as:
Now, rate of increase of volume is obtained by differentiating both sides of the equation with respect to time 't'.
Differentiating both sides with respect to time 't', we get:
Now, plug in 19 cm for 'r', 5 cm per minute for and solve for
. This gives,
Therefore, the rate at which the air is being pumped into the balloon is 22670.8 cm³/min.