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kotykmax [81]
2 years ago
6

A wall is 20 inches thick. 6 inches is​ concrete, 9 inches is​ brick, and 5 inches is limestone. What fraction of the wall is​ c

oncrete?
Mathematics
2 answers:
Citrus2011 [14]2 years ago
8 0

Answer:

30%

Step-by-step explanation:

NNADVOKAT [17]2 years ago
4 0

Answer:

6/20 or 30%

Step-by-step explanation:

As the entire thickness of the wall is 20 inches it becomes our base. Then we find how much of that is concrete (6 inches) and put it as our numerator.  

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ANSWER FOR BRAINLIEST
tester [92]

The numbers of chairs and tables that should be produced each week in order to maximize the company's profit is 15 chairs and 18 tables.

Since a furniture company has 480 board ft of teak wood and can sustain up to 450 hours of labor each week, and each chair produced requires 8 ft of wood and 12 hours of labor, and each table requires 20 ft of wood and 15 hours of labor, to determine, if a chair yields a profit of $ 65 and a table yields a profit of $ 90, what are the numbers of chairs and tables that should be produced each week in order to maximize the company's profit, the following calculation should be done:

16 chairs; 24 tables

Time used = 16 x 12 + 24 x 15 = 192 + 360 = 552

Wood used = 16 x 8 + 24 x 20 = 128 + 480 = 608  

15 chairs; 18 tables

Time used = 15 x 12 + 18 x 15 = 180 + 270 = 450

Wood used = 15 x 8 + 18 x 20 = 120 + 360 = 480  

12 chairs; 28 tables

Time used = 12 x 12 + 28 x 15 = 144 + 420 = 564

Wood used = 12 x 8 + 28 x 20 = 96 + 540 = 636  

18 chairs; 20 tables

Time used = 18 x 12 + 20 x 15 = 216 + 300 = 516

Wood used = 18 x 8 + 20 x 20 = 144 + 400 = 544

Therefore, the only option that meets the requirements of time and wood used is that of 15 chairs and 18 tables, whose economic benefit will be the following:

15 x 65 + 18 x 90 = X

975 + 1,620 = X

2,595 = X

Therefore, the numbers of chairs and tables that should be produced each week in order to maximize the company's profit is 15 chairs and 18 tables.

7 0
3 years ago
Read 2 more answers
Polygon A and Polygon B are similar with a ratio of similarity of 5/4. If the perimeter of Polygon A is 20 units, what is the pe
klemol [59]

Answer:

16 units

Step-by-step explanation:

A/B = 5/4 = 20/p

5/4 = 20/p

5p = 4 × 20

p = 4 × 4

p = 16

Answer: 16 units

6 0
2 years ago
Write a whole number that rounds to 10,000 if we are rounding to the nearest ten thousand
Inessa [10]
If you were to round it, a possible answer could be 9,997
8 0
3 years ago
Describe the transformation and identify the domain and range.
lara [203]

Answer:

the domain is the legal values of x, while the range is all the legale values of y

Step-by-step explanation:

5 0
3 years ago
Can someone help me please !
elena55 [62]
The reference angle is
pi/3.

At 180 it would be 9pi/3 so going past that is 10pi/3.

7 0
3 years ago
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