Considering the surface area of the spherical ballon, it will take 7 seconds for the the balloon to fully inflate.
<h3>What is the surface area of a sphere?</h3>
The surface area of a sphere of radius r is given by:
In this problem, the surface area is of 
cm², hence the radius in cm is found as follows:
r = 14 cm.
The radius start at 0 cm, inflating at a rate of 2 cm/s, hence it will take 7 seconds for the the balloon to fully inflate, as 14 cm/(2 cm/s) = 7 s.
More can be learned about the surface area of a sphere at brainly.com/question/21207980
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Let
x-------------> <span>original price of the skates
we know that
15% of x is </span><span>$19.50
so
0.15x=19.50---------> x=19.50/0.15-----------> x=$130
the answer is
the </span>original price of the skates was $130<span>
</span>
Answer:
the total cats is 65 and the total dogs is 60
Answer:The answer can be calculated by doing the following steps;
Step-by-step explanation:
I think you have done some mistakes in question because at one stage there comes a complex no. And at the end the value of n comes in decimal.
