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Reika [66]
3 years ago
9

Tell whether each equation represents a direct variation. if so, identify the constant of variation.

Mathematics
1 answer:
Ivenika [448]3 years ago
7 0

Answer:

1. Not a direct variation

2. Direct variation (constant= -4)

3. Direct variation  (constant= -1)

Step-by-step explanation:

A direct variation is a function of the type

y = k*x, where k can be any real number

First case

1. y=4x+9  

The term 9 interferes with the expression (it creates an offset for the value)

2. 2y=-8x  

It is a direct variation, y = -4x

3. x+y=0

It is a direct variation, y = -x

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How to solve for x 5x-8=18+4,for x=6
lbvjy [14]
Hey there,

Question : <span>How to solve for x 5x-8=18+4,for x=6

Answer :
5x - 8 = 18 + 4
5(6) - 8 = 18 + 4
30 - 8 = 18 + 4
22   = 22
Thus we can say that 6x = 30
6x = 30 
x = 30 / 6
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Hope this helps :))

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3 years ago
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4 0
2 years ago
Please help asap!!! !!!
erica [24]
(36 3/4" + 36 3/8" + 371/2" +z) /4 = 36 5/8" 
This is the equation that you would get for the average. Now we just solve for z. 
Following PEMDAS you have to mulitply the equation by 4 to get rid of the divide by 4 part. 
4( (36 3/4" + 36 3/8" + 371/2" +z) /4 = 36 5/8)
Which does this
 36 3/4" + 36 3/8" + 371/2" +z = 146 1/2" 
Now you have to add and subtract to get "z" by itself. 
36 3/4" + 36 3/8" + 371/2" = 110 5/8" 
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z= 35 7/8", so the answer is b
6 0
3 years ago
Name the algebraic property demonstrated in the example below.
svp [43]
Commutative property of multiplication 

5 0
3 years ago
List the prime factors for 54
natta225 [31]

Answer:

3

Step-by-step explanation:

The factors of 54 are 1, 3,9,18,27, and 54. 3 is the only prime number here.

Hope this helps.

8 0
3 years ago
Read 2 more answers
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