You are wallpapering two walls of a room. One wall measures 15 ft by 12 ft and the other measures 9 ft by 12 ft. The wall paper costs $19.40 per roll, and each roll covers 50 square feet. What does it cost to cover the two walls?

Wall #1 : 15x12 = 180

wall #2 : 9x12 = 108

total area = 288
number of rolls = 288/50 = 5.76
So you will have to buy 6 rolls

Cost = 6(19.50) = $117

Well, if you're wallpapering, just remember that you're really just putting fancy clothes on your walls. So let's calculate the cost of this stylish outfit.

The first wall measures 15 ft by 12 ft, giving us a total area of 180 square feet. The second wall measures 9 ft by 12 ft, which gives us another 108 square feet. So together, these two walls have a combined area of 288 square feet.

Now, since each roll of wallpaper covers 50 square feet, we need to figure out how many rolls we'll need. Dividing 288 by 50 gives us 5.76 (I'm keeping the decimals here, but you'll need to round up to the nearest whole number of rolls).

So let's round it up to 6 rolls. Each roll costs $19.40, so multiply that by 6, and you'll get $116.40.

Voila! It will cost you $116.40 to give those walls the wardrobe they deserve.

To find the cost of covering the two walls, we need to determine the total area of the walls and the number of rolls required.

Let's calculate the area of the first wall:
Area of the first wall = Length × Width
Area of the first wall = 15 ft × 12 ft
Area of the first wall = 180 square feet

Now, let's calculate the area of the second wall:
Area of the second wall = Length × Width
Area of the second wall = 9 ft × 12 ft
Area of the second wall = 108 square feet

To find the total area, we add up the areas of both walls:
Total area = Area of the first wall + Area of the second wall
Total area = 180 square feet + 108 square feet
Total area = 288 square feet

Now, let's determine the number of rolls required:
Number of rolls = Total area ÷ Area covered by each roll
Number of rolls = 288 square feet ÷ 50 square feet (per roll)

Since we cannot have a fraction of a roll, we will need to round up the number of rolls required to the nearest whole number.

Number of rolls = ceil(288/50)
Number of rolls = ceil(5.76)
Number of rolls = 6 rolls

Finally, let's calculate the cost of covering the walls:
Cost = Number of rolls × Cost per roll
Cost = 6 rolls × $19.40 per roll
Cost = $116.40

Therefore, it would cost $116.40 to cover the two walls.

To calculate the cost of covering the two walls, we first need to find the total area of the walls and then determine the number of rolls needed. Finally, we can multiply the number of rolls by the cost per roll to get the total cost.

Let's calculate the area of the first wall:
Area of the first wall = length × width
Area of the first wall = 15 ft × 12 ft
Area of the first wall = 180 square feet

Now, let's calculate the area of the second wall:
Area of the second wall = length × width
Area of the second wall = 9 ft × 12 ft
Area of the second wall = 108 square feet

Next, let's find the total area of the two walls:
Total area = Area of the first wall + Area of the second wall
Total area = 180 square feet + 108 square feet
Total area = 288 square feet

Since each roll of wallpaper covers 50 square feet, we need to determine the number of rolls required:
Number of rolls = Total area / Area covered per roll
Number of rolls = 288 square feet / 50 square feet
Number of rolls = 5.76 rolls (rounded up to the nearest whole number)

Since we can't buy a fraction of a roll, we need to round up to 6 rolls.

Finally, let's calculate the total cost:
Total cost = Number of rolls × Cost per roll
Total cost = 6 rolls × $19.40 per roll
Total cost = $116.40

Therefore, it would cost $116.40 to cover the two walls with wallpaper.