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My name is Ann [436]
3 years ago
7

Kayla is painting a room that is 12 feet long and 12 feet wide. The ceiling in the room is 8 feet high. The cost of painting the

walls and door is $0.33 per square foot. The cost of painting the ceiling is $0.66 per square foot. Enter the cost, in dollars, for Kayla to paint the room.​
Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer: $221.76

Step-by-step explanation:

Each wall has a length of 12 and a height of 8 and there are 4 walls

(12 x 8) x 4 = 384 sq ft

multiply sq ft by cost ($0.33)

384 x 0.33 = $126.72 for the walls and door

The ceiling has a length of 12 and a width of 12

12 x 12 = 144 sq ft

multiply sq ft by cost ($0.66)

144 x 0.66 = 95.04

add the costs

126.72 + 95.04 = $221.76 total

image of drawing of room

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After a dilation with center (0,0) the image of DB is D’B’ if DB=6 and D’B’=2 the scale factor of dilation is what ?
bezimeni [28]

Answer:

scale factor = \frac{1}{3}

Step-by-step explanation:

the scale factor is the ratio of corrresponding sides. image to original.

scale factor = \frac{D'B'}{DB} = \frac{2}{6} = \frac{1}{3}

7 0
3 years ago
mark has 312 books in his bookcases she has 11 as many fiction books as nonfiction books how many fiction books does mark have?
belka [17]
11 as many fiction books as non fiction.

Fiction books F,  Non Fiction NF

F: NF =  11 : 1

Total ratio 11+ 1 = 12.

Fraction of Fiction books F,  =  11/12

Total books = 312.

Fiction books  =     11/12 * 312 =  286

Fiction books = 286 
7 0
3 years ago
Read 2 more answers
José made a scale model to compare the Petronas towers, which are 1483 feet tall, to the Empire State Building, which is 1250 fe
Brrunno [24]

The model of the Petronas towers is 4.7 inches taller than the model of the Empire State Building

Step-by-step explanation:

The given is:

  • José made a scale model to compare the Petronas towers, which are 1483 feet tall, to the Empire State Building, which is 1250 feet tall
  • In the model, the empire state building is 25 inches tall

We need to find how much taller than the model of the empire state building is the model of the Petronas towers

∵ The model of the empire state building is 25 inches tall

∵ The Empire State Building is 1250 feet tall

- Let us find the scale drawing

→  inches  :  feet

→  25         :  1250

Divide both sides of ratio by 25

→  1             :  50

That means each 1 inch in the model represents 50 feet in real

∴ The scale drawing is 1 inch : 50 feet

Use this scale to find the model length of Petronas towers

→  inches  :  feet

→  1            :  50

→  x            :  1483

By using cross multiplication

∴ x × 50 = 1 × 1483

∴ 50 x = 1483

- Divide both sides by 50

∴ x = 29.66

∵ x represents the length of Petronas towers model

∴ Petronas towers model is 29.66 inches tall

Now find the difference between the lengths of the two models

∵ The difference = 29.66 - 25 = 4.66 inches

- Round it to the nearest 0.1 inch

∴ The model of Petronas towers is 4.7 inches taller than the

   model of the Empire State Building

The model of the Petronas towers is 4.7 inches taller than the model of the Empire State Building

Learn more:

You can learn more about the scale drawing in brainly.com/question/570757

#LearnwithBrainly

8 0
4 years ago
Help any one plz thank you
MatroZZZ [7]

I believe its the first one, think of it like a mirror you would flip the shape which would do make x negative and y positive, sorry if im wrong

3 0
3 years ago
How is using a model to multiply 0.3 by 0.7 similar to finding the area of a rectangle?
Sunny_sXe [5.5K]

Answer:

no

Step-by-step explanation:

6 0
3 years ago
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