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Sav [38]
3 years ago
7

3x + x + x + x − 3 − 2 = 7 + x + x In the equation above, what is the value of x?

Mathematics
1 answer:
algol133 years ago
7 0

Answer:

x=3

Step-by-step explanation:

3x + x + x + x − 3 − 2 = 7 + x + x

Combine like terms

6x -5 = 7+2x

Subtract 2x from each side

6x-2x -5 = 7+2x-2x

4x-5 =7

Add 5 to each side

4x-5+5 = 7+5

4x =12

Divide by 4

4x/4 = 12/4

x = 3

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Can someone help with finding the coordinates and particular PART B.
mestny [16]

Happy New Year from MrBillDoesMath!

Answer:

Part A:

 point   \ coordinates \ quadrant:

 I            (1,2)                  1

 L           (-4,2)                2

 K          (-4,0)                does not belong to any quadrant

 J           (3,-1)                4

 M         (4,-4)                4


Part B:

Point K = (-4,0) lies on the x-axis so reflecting it about the x-axis gives the  same point. In other words, the "reflected" point has coordinates  (-4,0)

 

Part C:

L = (-4,2). Reflecting it about the y-axis gives the point (4,2)


Thank you,

MrB

7 0
3 years ago
Read 2 more answers
Three pieces of wood measure 20 cm, 41 cm, 44 cm. If the same amount is cut off each piece, the remaining length can be formed i
SIZIF [17.4K]

The length that can be cut off from the three given pieces of wood equally to form a right triangle is 5 cm

Given parameters:

dimension of the three pieces of wood = 20 cm, 41 cm and 44 cm

To find:

  • the length that is cut off to form a right triangle

let the length that is cut off from each of the wood = y

From Pythagoras theorem, we will have the following equation.

(44-y)^2 = (20-y)^2 + (41-y)^2\\\\expand \ the \ equation \ as \ follows;\\\\1936 - 88y + y^2 = 400 - 40y + y^2  + 1681 - 82y + y^2\\\\simplify \ by \ collecting \ similar \ terms \ together\\\\(1936 - 400- 1681) + (-88y + 40y+ 82y) + (y^2 - 2y^2) = 0\\\\-145 +34y - y^2 = 0\\\\multiply \ through \ by \ (-1)\\\\y^2-34y + 145 = 0\\\\factorize \ the \ above \ quadratic\  equation\\\\y^2 -5y - 29y + 145 = 0\\\\y(y - 5) -29(y - 5)=0 \\\\(y -5)(y-29) = 0\\\\y = 5 \ \ \ or \ \ \ \ y = 29

Since the least measurement of one of the pieces of the wood is 20 cm, we cannot cut off 29 cm.

Thus, the highest amount we can cut off equally is 5 cm

learn more here: brainly.com/question/15808950

7 0
3 years ago
Help me please I need help and its due soon
marshall27 [118]

Answer:

1/2 4 ( I believe it's the correct answer, forgive me if I'm wrong)

4 0
3 years ago
Can someone help with this?
skelet666 [1.2K]

Answer:

A

Step-by-step explanation:

only Ali's way would work in this situation. since there is a 5 on the right side, you can not use the zero product property. this only works if the right side is 0. so, you must use Ali's method.

6 0
3 years ago
Find the equation of the line going through the point (4,1) and<br> parallel to y=-3x+7
Dahasolnce [82]
Parallel = same slope
Y = -3x + b
1 = -3(4) + b
1 = -12 + b, b = 13
Equation: y = -3x + 13
4 0
3 years ago
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