You have decided to wallpaper your rectangular bedroom. The dimensions are 12 feet 6 inches by 10 feet 6 inches by 8 feet 0 inches high. The room has two windows, each 4 feet by 3 feet and a door 7 feet by 3 feet. Determine how many rolls of wallpaper are needed to cover the walls, allowing 10% for waste and matching. Each roll of wallpaper is 30 inches wide and 30 feet long. How many rolls of wallpaper should be purchased?

Answers

Answer 1

Answer: First calculate how much wallpaper is needed:
add: 2 walls of 12.5 ft length x 8 ft high = 200 ft²
add: 2 walls of 10.5 ft length x 8 ft high = 168 ft²
subtract: 2 windows of 4 ft length x 3 ft high = 24 ft²
subtract: 1 door of 3 ft length x 7 ft high = 21 ft²
Wallpaper needed: 200 + 168 - 24 - 21 = 323 ft²
Add 10% for waste and matching: 323 + 323(10%) = 355.3 ft²

Next, calculate the amount of wallpaper in one roll:
0.5 ft wide x 30 ft length = 15 ft²

Lastly, calculate how many rolls are needed:
355.3 ÷ 15 = 23.7
Since you can only purchase an entire roll (and not a fraction of it),
round the answer up to the nearest whole roll.

Anser: 24 rolls of wallpaper should be purchased.

Related Questions

(08.02)A pair of equations is shown below.x + y = 2y = one halfx + 5If the two equations are graphed, at what point do the lines representing the two equations intersect?(4, −2)(−2, 4)(2, 5)(5, −2)
What is the difference between 4x and x to the 4th power? Evaluate both of these expressions when x = 2
You roll two six sided number cubes (dice). What is the BEST answer for the probability that the numbers rolled add to a number greater than twelve?
What is the exponential notation of this 90.000.000 ?
Of the 15 cars in a parking lot, 5 are green, 2 are gold, and the rest are black. What are the odds against the nest car leaving the lot being black?

I have 1/2-1/7 and3/5-1/2

Answers

$(1)/(2)-(1)/(7)=\ \ \ | make\ common \denominator\n\n(7)/(14)-(2)/(14)=(7-2)/(14)=(5)/(14)\n\n(3)/(5)-(1)/(2)= \ \ \ | make\ common \denominator\n\n (6)/(10)-(5)/(10)=(1)/(10)$

1/2 - 1/7 = 7/14 - 2/14 = 5/14
3/5 - 1/2 = 6/10 - 5/10 = 1/10

Write the equation of the line described below in slope-intercept form. m = 6, b = 2

Answers

The slope-intercept format is 'y = mx + b'

Knowing this, we can just input the given values into the format.

y = 6x + 2

If you need me to explain anything in more depth, just ask :))

Good luck!

-T.B.

On the last day of school, Mrs. Awesome gave jelly beans to her class. She gave each boy as many jelly beans as there were boys in the class. She gave each girl as many jelly beans as there were girls in the class. She brought $400$ jelly beans, and when she finished, she had six jelly beans left. There were two more boys than girls in her class. How many students were in her class?

Answers

Answer:

28 students

Step-by-step explanation:

Let x be the number of girls in the class. There were two more boys than girls in her class, then the number of boys is x + 2.

Mrs. Awesome gave each boy as many jelly beans as there were boys in the class, so each of x + 2 boys got x + 2 jelly beans, so

Number of boys = x + 2

Number of jelly beans each boy got = x + 2

Total number of jelly beans all boys got = (x + 2)(x + 2)

Mrs. Awesome gave each girl as many jelly beans as there were girls in the class, so each of x girls got x jelly beans, so

Number of girls = x

Number of jelly beans each girl got = x

Total number of jelly beans all girls got = (x)(x)

Hence,

Total number of jelly beans class got = (x + 2)(x + 2) + (x)(x)

Mrs. Awesome brought 400 jelly beans, and when she finished, she had six jelly beans left, so she gave 400 - 6 = 394 jelly beans to the calss.

So,

$(x+2)(x+2)+(x)(x)=394\n \nx^2+2x+2x+4+x^2=394\n \n2x^2+4x+4-394=0\n \n2x^2+4x-390=0\n \nx^2+2x-195=0\n \nD=2^2-4\cdot (-195)=4+780=784\n \n√(D)=28\n \nx_(1,2)=(-2\pm 28)/(2\cdot 1)=-15,\ 13$

Number of girls cannot be negative, so x = 13, x + 2 = 15 and total number of students is 13 + 15 = 28

Evaluate the expression if d= -3
|d|

Answers

|d| = 3 Because it is the absolute value of -3 which means that the (-) sign will be deleted

The ratio of boys to girls in Mr. Bakers social studies class is 2 to 3. If there are 30 total students in the class how many more girls are in the class than boys?

Answers

There are 6 girls more than boys if the ratio of boys to girls in Mr. Bakers' social studies class is 2 to 3.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that is +, -, ×, and ÷.

It is given that:

The ratio of boys to girls in Mr. Bakers' social studies class is 2 to 3.

From the question:

2 + 3 = 5 parts

= 2/5 Boys

= 3/5 Girls

30(2/5) = 60/5 = 12 Boys

30(3/5) = 90/5 = 18 Girls

18 - 12 = 6 girls are more than boys

Thus, there are 6 girls more than boys if the ratio of boys to girls in Mr. Bakers' social studies class is 2 to 3.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

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2 + 3 = 5 parts
2/5 Boys
3/5 Girls

30 * 2/5 = 60/5 = 12 Boys
30 * 3/5 = 90/5 = 18 Girls

18 - 12 = 6 girls are more than boys

Roland is picking out a snack. He has an apple, a pear, a banana, and an orange to choose from. Roland is going to pick one at random and wants to know what the chance that he will pick a bananna? Identify the action, the sample space, and the event.

Answers

Since there are 4 options and only 1 banana, there is a 1/4 chance he will pick a banana. I'm not sure what you mean by the last few questions? I think the sample space is an apple, pear, banana, or an orange. And the event is banana?

Ω = 4 set all equally probable events
aplle, pear,banana, orange
A = 1 random event favorable
banana

$P(A) = (A)/(omega) = (1)/(4)$

Roland choose once and has one chance in four that will draw the coveted banana. Therefore, the probability of this event is 1/4

Answer 1/4

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a chalk line is placed around the perimeter of the football field what is the length of this line in feet

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