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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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In triangle ABC, the size of angle B is 4 times the size of angle A, and the size of angle C is 6°
amid [387]

Answer:

<A = 18.6 Degree

<B =74.4 Degree

<C = 87 Degree

Step-by-step explanation:

Sum of all the angles of triangle is 180

as given ,

<A = ?

<B = 4<A

<C = 5 <A - 6

As per rule ,

<A + <B +<C = 180

<A + 4 <A + 5<A - 6 = 180

10 <A - 6 = 180

10 <A = 180 + 6

<A = 186 / 10

<A = 18.6 Degree

Hence ,

< B =  4 X (18.6)

< B = 74.4 Degree

and

<C = 5 (18.6) - 6

<C = 87 Degree

PROOF

<A + <B + <C = 180

18.6 + 74.4 + 87 = 180

180 = 180

4 0
3 years ago
Which pair of functions are inverse functions?<br><br> PLEASE ILL GIVE BRAINLIEST
algol13

Answer:

A

Step-by-step explanation:

To find an inverse function you switch f(x) and x, and solve for f(x) (in this case you also rename it to g(x) )

inverse of y=(x-4)/5  is  

5x =  x -4

x = 5x + 4  so A works

7 0
3 years ago
The triple beam balance shown above measures in grams what is the mass of the chick ?
ipn [44]
We have that

the first balance indicates--------> 10 g

the second balance indicates--------> 0 g

the third balance indicates--------> 7.5 g

therefore 
the <span>mass of the chick is (10+0+7.5)----> 17.5 g

the answer is
17.5 g</span>
4 0
3 years ago
I don't understand this. . . . Somebody, please help!
Anika [276]
The answer to your problem is 3^1..


3 0
3 years ago
-5=a/18 <br> one step equation
RideAnS [48]

Answer:

-5 = -90/18

this will be your answer my friend

4 0
2 years ago
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