SOLUTION: Construction: The amount of horizontal wood siding (in square feet) needed to cover a given wall area can be calculated from the fromula. Area of siding (sq ft) = KX total area to

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Question 106420: Construction: The amount of horizontal wood siding (in square feet) needed to cover a given wall area can be calculated from the fromula.
Area of siding (sq ft) = KX total area to be covered (sq ft)
where K is a constant that depends on the type and size of the siding used. How much 1-by6 rustic shiplapped drop siding is needed to cover a rectanglular wall 60 ft by 14 ft? Use K=2.19 and round to three significant digits.
Answer by MathLover1(20850) About Me  (Show Source):
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Construction: The amount of horizontal wood siding (in square feet) needed to cover a given wall area can be calculated from the formula.
let area of siding %28sq+ft%29+=+KX total area to be covered (sq ft) be A
where K+=+2.19
if we need to cover a rectangular wall 60+ft by 14+ft, using K=2.19, then A+=2.19+%2860ft%29%2814ft%29
A+=+1839.6ft%5E2
let area of 1 rustic ship lapped drop siding be B
then: B+=+1ft%2A6+ft+=+6ft%5E2

Now, we need to divide A by B in order to find out how many rustic ship lapped drop is needed. Let number of it be N.
N+=+1839.6ft%5E2%2F6ft%5E2 ……………here you eliminate ft%5E2
N+=+306.6