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kobusy [5.1K]
3 years ago
7

a new alloy is made by mixing 8 parts of iron, 3 parts of zinc, and one part of tungsten. how much of each metal is needed to ma

ke 420 m3 of the alloy
Mathematics
1 answer:
vitfil [10]3 years ago
3 0

Answer:

Iron: 280m³

Zinc: 105m³

Tungsten: 35m³

Step-by-step explanation:

8+3+1 = 12

(8/12)×420 = 280

(3/12)×420 = 105

(1/12)×420 = 35

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Ira Lisetskai [31]

Answer:

Question 1:

  • 2. Households that possess only cellphones.
  • 5. Households without telephones.

As the pollster used the telephone directory, they will get the numbers of listed people in that community. Cellphones are not listed along with households with telephones so these will be underrepresented.

Question 2:

  • 1. Lower income people (cannot afford a phone).
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Question 3:

  • 2. Households with unlisted numbers  
  • 4. Households with land-line telephones that have moved into the community since the most recent community telephone directory was printed.

Households with unlisted numbers will still be called because the person is using random dialling which means that even if the number is not listed, it can still be called. Households with landlines will most definitely be reachable as well.

8 0
3 years ago
Violet is playing a board game with her friends. She earns 78 points during the game, and she receives a game-end bonus for achi
Oxana [17]

Answer:

13

Step-by-step explanation:

78 + b = 91            Equation: Subtract 78 from both sides.

b = 91 - 78            

b = 13

You don't need her position in the game or the fact that 91 placed her second.  

6 0
3 years ago
Please help with the picture below
elena-s [515]

Answer:

Step-by-step explanation:

Remark

The angles are marked as alternate interior angles. To be parallel, they must be equal. In other words x - 20  must equal 52. That's all you have to do. Just equate the 2 givens and solve.

Givens

x - 20 is one angle

52 is the other.

Solution

x - 20 = 52                   Add 20 to both sides.

x - 20 + 20 = 52 +20   Combine

x = 72

Answer: C

4 0
2 years ago
How do i do this help
Ratling [72]
I don't know if u can see it, but there.
X=12
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5 0
4 years ago
I need help quick!! its due in 10 mintunes helpp!!!!!
irina1246 [14]

Answer:

b) 10

Step-by-step explanation:

(3×10+46)+14 = 90

<em>Hope this helps!!!!!</em>

8 0
2 years ago
Read 2 more answers
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