Question

Can someone please take some time to help me? I would really appreciate it. Thank you very much.

Adia plans to wallpaper her bedroom. The measurements are 10’ by 12’ with 8’ ceilings.


Part 2: If each single roll of wallpaper covers 72 square feet, how many single rolls of wallpaper will Adia need for her project?

Answer: _ single rolls (type the number only)
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Adia plans to wallpaper her bedroom. The measurements are 10’ by 12’ with 8’ ceilings.

Part 3: If each single roll of wallpaper covers 72 square feet, how many double rolls of wallpaper will Adia need for her project?
Answer: _ double rolls (type the number only)

Answer 1

5 single rolls or 3 double rolls.

Explanation:

Ignoring doors and windows, we need to find the lateral surface ares. We are not papering the ceiling or floor.

The lateral surface areas = P*h

= 2(l+w) * h

= 2(10+12) * 8

= 2(22)*8

=352 ft^2

A single roll covers 72 ft^2 so we divide the number of ft^2 that we need (352^2) by the amount of a single roll

352/72 =4.88888(repeating)

Rounding up since we need to buy in full rolls.

We will need 5 rolls

Assuming a double roll will cover twice that of a single roll

2*72 = 144 ft^2

Take 572/144 =2.4444444

Rounding up since we need to buy in full rolls.

We will need to buy 3 double rolls