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-BARSIC- [3]
3 years ago
5

Somebody help please

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
6 0

Answer:

dang well ur probably screwed

sweet [91]3 years ago
5 0

Answer:

Step-by-step explanation:

A:function

B:not function

C:function.

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If y varies directly with x, and y = 2 when x = −4, what is the value of y when x = 20
Klio2033 [76]

Answer:

y = - 10

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 2 when x = - 4, that is

2 = - 4k ( divide both sides by - 4 )

= k, that is

k = -  

y = -  x ← equation of variation

When x = 20, then

y = -  × 20 = - 10

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ddd [48]
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4 0
3 years ago
What is the variable x in 40+10x=5x-30
konstantin123 [22]

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To begin isolating x, subtract 40 from both sides.

40 + 10x - 40 = 5x - 30 - 40

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Subtract 5x from both sides.

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Finally, divide both sides by 5.

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Answer:

x = -14

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inn [45]
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