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MariettaO [177]
3 years ago
15

Help me plz need smart people

Mathematics
2 answers:
Genrish500 [490]3 years ago
8 0
The answer to 9 is 87.

The answer to 10 is x=91, y=89, and z=31

Mark as branliest plz

melamori03 [73]3 years ago
3 0
9
In a triangle, the three interior angles always add to 180°
x = 180 - 28 - 65 = 87° 
(Choice B)

10
x = 180 - 51 - 38 = 91°
y = 180 - x = 180 - 91 = 89°
z = 180 - 89 - 60 = 31°
(Choice D)
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Answer:

Step-by-step explanation:

The answer is 50 I got it right

3 0
3 years ago
Plzz help me im going to most more like this because im not understanding it
lisov135 [29]
Hi there!

In order to solve, you can use substitution. This means that you use one equation and solve for one variable, then use that one equation and plug it into the other equation. Here's how we'd do it:

WORK:
x = 12 - y (since x is already solved for, we'll use that to plug into the other given equation.
2(12 - y) + 3y = 29 (using substitution)
24 - 2y + 3y = 29
24 + y = 29
y = 5
Plug the value of y back into the first equation
x = 12 - 5
x = 7

ANSWER:
A - x = 7, y = 5

It seems as though you're having some trouble with these questions, PLEASE MESSAGE ME!! I'd be more than happy to help you work through as many problems as you need until you get the hang of it (plus, it doesn't cost you any points!)

Hope this helps!! :)
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5 0
3 years ago
Complete the solution of the equation. Find the<br> value of y when x equals -18.<br> -3x - y = 56
Reil [10]

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y = -2

Step-by-step explanation:

8 0
3 years ago
Gianna earned $466.90 at her job when she worked for 23 hours. How much money did she earn each hour?
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About $20.30

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Which complex number is equivalent to the given expression (2+I)(8-3i)-(23+34i)
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