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Y_Kistochka [10]
3 years ago
7

Which equation can you use to solve for x?

Mathematics
2 answers:
avanturin [10]3 years ago
3 0
Opposite angles are equal so the equation is 

x + 71 = 108   (A)
Fiesta28 [93]3 years ago
3 0
A x+71=108. Hope this helps
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What is the solution for the system of equations? y=−x+4 y= x−2
MissTica

Answer:

(3, 1 )

Step-by-step explanation:

Given the 2 equations

y = - x + 4 → (1)

y = x - 2 → (2)

Substitute y = x - 2 into (1)

x - 2 = - x + 4 ( add x to both sides )

2x - 2 = 4 ( add 2 to both sides )

2x = 6 ( divide both sides by 2 )

x = 3

Substitute x = 3 into either of the 2 equations and solve for y

Substituting into (2)

y = 3 - 2 = 1

solution is (3, 1 )

6 0
3 years ago
Working alone, it takes Julia 16 hours to clean an attic. Lea can clean the same attic in 15 hours. If they worked together how
egoroff_w [7]
How do you think we set this problem up?

7 0
3 years ago
20 POINTS! HELP!!
astraxan [27]
The answer is C. 30.5% :)
5 0
3 years ago
Help please need those answers
icang [17]

We know: The sum of the measures of the angles of a triangle is equal 180°.

We have: m∠A =65°, m∠B =  (3x - 10)° and m∠C = (2x)°.

The equation:

65 + (3x - 10) + 2x = 180

(3x + 2x) + (65 - 10) = 180

5x + 55 = 180        <em>subtract 55 from both sides</em>

5x = 125          <em>divide both sides by 5</em>

x = 25

m∠B =  (3x - 10)° → m∠B =  (3 · 25 - 10)° = (75 - 10)° = 65°

m∠C = (2x)° → m∠C = (2 · 25)° = 50°

<h3>Answer: x = 25, m∠B = 65°, m∠C = 50°</h3>
8 0
3 years ago
What percent of 60 is 3? <br> Show work please?<br> Thank you !
masya89 [10]

Answer:

5%

Step-by-step explanation:

you know 10% of 60 is 6. 3 is half of 6, and 5% is half of 10.

hope this helped!

7 0
3 years ago
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