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Eli's bedroom door is 9 feet tall and 3 feet wide. A new door is $4.00 per square foot. How much would a new bedroom door cost in total

Sagot :

Answer:$108

Step-by-step explanation:

Given

Bedroom door is [tex]9\ ft[/tex] tall

width of the door is [tex]3\ ft[/tex]

Rate [tex]R=\$4/ m^2[/tex]

The area of the door is  [tex]l\times w[/tex]

[tex]\Rightarrow A=9\times 3=27\ m^2[/tex]

Cost is given by

[tex]\Rightarrow C=27\times 4=\$108[/tex]

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