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kumpel [21]
2 years ago
9

A student wants to prove that she can solve a system of a system of equations by replacing one of the equations with two times t

hat equation and adding the other equation. The original system was 12x +2y =30 and 10x+y = 26. The student claims that her first step is to add the two linear equations. Select the option that refutes the student claim

Mathematics
1 answer:
serg [7]2 years ago
5 0

Answer: y=+{%

Step-by-step explanation:

€

hey

heh

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1. Let C be between D and E. Use the Segment addition Postulate to solve for v.
AURORKA [14]

By applying the segment addition postulate, the <u>value of v = 7</u>

  • According to the Segment Addition Postulate, it holds that if point C is between points D and E, therefore:

DC + CE = DE

  • Given that:

DC = 2v-15\\\\CE = 3v-8\\\\DE = 27

  • Therefore, by substitution, we will have the following equation:

(2v-15) + (3v-8) = 27

  • Open the bracket and solve for the value of v.

2v-15 + 3v-8 = 27

  • Add like terms

5v - 23 = 27

  • Add 23 to both sides

5v - 23+ 23 = 27 + 23\\\\5v = 50

  • Divide both sides by 5

v = 10

Therefore, using the segment addition postulate, the <u>value of v = 10</u>

Learn more about the segment addition postulate here:

brainly.com/question/1721582

7 0
2 years ago
A circular lampshade with a diameter of 14 inches has a length of wire that goes around it exactly one time. How many inches of
asambeis [7]
Diameter = 2*radius
14/2=7
Radius is 7in"
Circumference of circle formula: 2pi(radius)
2pi(7)= 43.98in of wire required so it can wrap around lamp exactly once.
5 0
3 years ago
Please answer asap! Will mark brainliest.
choli [55]
It is too blurry i will try too help if I tell me what too do
5 0
2 years ago
Read 2 more answers
46 meters use pie= 3.14
Ugo [173]
Could you explain what you need help with for this question more? i can help i just need an explanation of what you need:)
3 0
3 years ago
X-27 = 7x -15<br><br> please show the work, i’ll mark brainliest
qaws [65]

Answer:

x=-2

Step-by-step explanation:

x-27 = 7x -15

subtract x from both sides

-27=6x-15

add 15 to both sides

-12=6x

divide both sides by 6

-2=x

x=-2

5 0
2 years ago
Read 2 more answers
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