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if you have a 18 foot diameter circular above dround pool that is $48.43 what is the cost per square foot of this cover?

Guest Mar 18, 2017
 #1
avatar+7155 
+2

How many "square feet" are in the pool cover?

 

area = π * radius2

 

radius = diameter / 2

radius = 18 feet / 2

radius = 9 feet

 

area = π * (9 feet)2

area = 81π square feet

 

So there are 81π square feet in the pool cover.

...

Now let me ask this...

If there are 2 apples in a basket,

and the total cost of the basket is $6,

how much does each apple cost individually?

$6 / 2 apples = $3 per apple

...

If there are 81π square feet in the pool cover,

and the total cost of the pool cover is $48.43,

how much does each square foot cost?

$48.43 / (81π) square feet ≈ $0.19 per square foot *thx EP

hectictar  Mar 19, 2017
edited by hectictar  Mar 19, 2017
edited by hectictar  Mar 19, 2017
 #2
avatar+12565 
+1

radius = 9   area = pi x r^2 = 81pi sq ft

$48.43/ (81 pi)  =  .1903 ~~~ 19 cents per sq ft

ElectricPavlov  Mar 19, 2017

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