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Lina20 [59]
3 years ago
10

Fran solved the equation 42 = x + 23. Although her final answer was correct, she could have found it in a simpler way. Which sen

tence best explains why? 23 should be added to the left side and 42 added to the right side. 23 should have been subtracted from, not added to, both sides of the equation. 42 should be subtracted from both sides. The variable must be moved to the left side of the equation.
Mathematics
1 answer:
Step2247 [10]3 years ago
7 0

Answer:

23 should have been subtracted from, not added to, both sides of the equation.

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Find the measure of the missing angles.
Karolina [17]

Answer:

angles b and c should be 153° each.

Step-by-step explanation:

We know the smaller angle is 27°. The other small angle, vertical to the 27° angle is also 27° because they are vertical angles. Along the lines, two angles should form 180°. So 180-27=153°. All together the angles should be 360°. Check your answer by doing 153+153+27+27=360. therefore the missing angles are both 153°

4 0
2 years ago
Pls help me! And explain how you found the answer pls
Dmitriy789 [7]

Answer:

y = \frac{1}{2} x - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 22, - 14) and (x₂, y₂ ) = (- 18, - 12)

m = \frac{-12+14}{-18+22} = \frac{2}{4} = \frac{1}{2} , thus

y = \frac{1}{2} x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (- 18, - 12) , then

- 12 = - 9 + c ⇒ c = - 12 + 9 = - 3

y = \frac{1}{2} x - 3 ← equation of line

6 0
3 years ago
Explain how to find 40x80 using mental math
nadya68 [22]

so 40 * 80 = 3,200

4 * 8 = 32

Then add the two 0's to the end

so 3,200

5 0
3 years ago
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Leviafan [203]

Answer:

Step-by-step explanation:

∠A  - Angle can also be named by the vertex holding the angle.

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6 0
2 years ago
I need help with math, giving 15 points! (And brainiest)
solmaris [256]

Answer:

C

Step-by-step explanation:

3x + y + x - 6 + y

3x + x + y + y - 6

4x + 2y - 6

3 0
3 years ago
Read 2 more answers
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