Alice needs to waterproof her house back deck which is 18 feet by 5 feet the waterproof coating costs $6 for a can that covers 30 square feet how much will the project cost her total
Mathematics · High School · Mon Jan 18 2021
Answered on
Given the statement:
Alice needs to waterproof her house back deck which is 18 feet by 5 feet the waterproof coating costs $6 for a can that covers 30 square feet.
Determine the project cost.
Solution:
We must first find the total area of her back deck, hence we assume that it is rectangular in shape since the given are the length and the width. For that we will use the formula for the area of the rectangle.
A = lw
A = (18 ft)( 5 ft)
A = 90 ft^2
Now we need to divide 90 by 30 then multiply the quotient by $6, in order to determine the project cost.
= 90 ft^2 / 30 ft^2
= 3
= (3)($6)
= $18
Final answer:
The project cost is $18.