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erik [133]
3 years ago
9

Will mark brainliest. Step-by-step please. Thank you very much.

Mathematics
1 answer:
Naily [24]3 years ago
3 0

Answer:

133°

Step-by-step explanation:

angles on a straight line = 180°

180 - 144 = 36°

angles in a triangle = 180°

36 + 31 = 67

180 - 67 = 113

answer = 113°

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Alex73 [517]

Answer:

a^{2}

Step-by-step explanation:

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3 years ago
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Solve by system of equations:<br> 2x+5y=-11<br> -8x-5y=-1<br> answer like this:<br> ( _,_ )
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Answer:X(2,-3)Y

Step-by-step explanation:

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3 years ago
Whats the output when the input is 1234n and the output is 10 12 14 16.
Grace [21]

Answer:

y=2x+8

Step-by-step explanation:

Alright so, to find the equation, we need to find the slope first. We can do that by turning the input and output into coordinates.

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To find the slope, we do:

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So right now we can say that the equation is:

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4 0
3 years ago
Sally has twice as many dimes as nickels. The total value is $3.50 how many nickels and dimes does she have?
Murljashka [212]
D=2n
.05n+.1d=3.5
I multiplied the nickels and dimes by these values because that is their actual monetary value 
.05n=3.5-.1d
multiply everything by 20
n=70-2d
d/2=70-2d
.5d+2d=70 
2.5d=70
d=28 
n=14 
so there are <u>28 dimes and 14 nickels 
</u>
checking this answer 
28 dimes = $2.8
14 nickels = .70
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Sorry about the bad handwriting
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