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Andreas93 [3]
3 years ago
6

Please help, thank you

Mathematics
1 answer:
irina1246 [14]3 years ago
4 0

Answer:

It's kinda hard to see can you type out the question?

Step-by-step explanation:

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How to find the scale factor, ratio of area, & ratio of volume?
Andreas93 [3]

Step-by-step explanation:

If the scale factor of two similar solids is a: b:. then

(1) the ratio of corresponding perimeters is a:b

(2) the ratio of the base areas, of the lateral areas, and of the total areas is a^2: b^2

(3) the ratio of the volumes is a^3:b^3

3 0
3 years ago
Mr. Pham wrote the equation below on the board. 18 - 7x = -20.5 What is the value of x?
slavikrds [6]
Use the arithmetic operations to get the variable x on one side of the equation and everything else on the opposite side.

If something is being is being done to a variable, we undo that operation by using the inverse of that operation.

For example, if 10 is being added to x, we use the inverse of addition or subtraction.

18 - 7x = -20.5

We variable x is being multiplied by 7 and is subtracting 18. We need to undo all those operations.

18 - 7x = -20.5
-7x = -38.5

Now the variable is only being multiplied by -7. Reverse the operation.

-7x = -38.5
x = 5.5

So, x is equal to 5.5.
7 0
3 years ago
Read 2 more answers
Wich relation is a function of x
faust18 [17]

Answer:

the first one

Step-by-step explanation:

In the other 2 i can see the x repeats itself meaning it isn't a function.

7 0
3 years ago
What is the result of multiplying the second equation by 2 and adding to the first equation?
vladimir1956 [14]

Answer:

5x + y = 8

Step-by-step explanation:

Given the equations:

x+3y=10 ____ (1)

2x−y=−1 ____ (2)

Multiply (2) by 2

2(2x - y = - 1) = 4x - 2y = - 2

4x - 2y = - 2 - - - (3)

Add (1) and (3)

4x - 2y = - 2

x + 3y = 10

___________

5x + y = 8

_________

3 0
3 years ago
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Can someone help me with this? I need the answers or I will fail my math because of homework........
Katarina [22]
54 boo . Divide 189 by 7 then multiply by 2 which is 54
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3 years ago
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