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guapka [62]
3 years ago
12

A rectangular window 5 feet by 2 feet is on a rectangular wall 9 feet by 18 feet. The rest of the wall needs to be painted. Appr

oximately how many square feet of the wall needs to be painted?
Help, please :)
Mathematics
1 answer:
jeka943 years ago
5 0

Step-by-step explanation:

<u>Step 1:  Find the area of the window</u>

Area = l * w

Area = 5 * 2

Area = 10 ft^2

<u>Step 2:  Find the area of the wall</u>

Area = l* w

Area = 9 * 18

Area = 162 ft^2

<u>Step 3:  Find the difference</u>

Area \ of \ Wall - Area\  of\  Window

162 - 10

152 ft^2\  need \ to\  be\  painted

Answer:  152 \  square\  feet

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