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MariettaO [177]
3 years ago
8

Find the value of y 2x+6=x-12

Mathematics
2 answers:
forsale [732]3 years ago
3 0

Answer:

x=-6

Step-by-step explanation:

 

zhannawk [14.2K]3 years ago
3 0
2x+6=x-12
2x+18=x
x+18=0
x=-18
This here is the correct answer
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A marching band is performing in a rectangular arrangement, with a width of $w$ people. The length consists of seven less people
Norma-Jean [14]

Answer:

There are 120 people in the marching band.

Step-by-step explanation:

Let no. of people in the band be x.

In the first rectangular arrangement,

Width of rectangle (w_{1}) = w people.

Length of rectangle (l_{1}) = (w-7) people

Therefore,

no. of people in the band(x) = Area of the rectangle = Product of width and Length

x = width \times length

x = w\times (w-7)  (equation 1);

In the second rectangular arrangement,

Width of rectangle (w_{2}) = (w-3) people.

Length of rectangle (l_{2}) = (w-5) people

Therefore,

no. of people in the band(x) = Area of the rectangle = Product of width and Length

x = width \times length

x = (w-3)\times(w-5)  (equation 2);

Therefore, from equation 1 and equation 2 , we get,

w\times(w-7)=(w-3)\times(w-5)

w^{2}-7w=w^{2} - 8w + 15

Therefore,

w = 15  (equation 3)

From equation 1 and equation 3, we get

x = 15\times(15-7)

x = 120.

Therefore,

no. of people in the marching band = 120 people

8 0
3 years ago
NEED HELP ASAP!!! 50 POINTS!!! WILL MARK BRAINLIEST
xxTIMURxx [149]

Answer:

x=29. Angle C= 93

Step-by-step explanation:

3(x+2)= 3x+6.

3x+6+52+35= 3x+93.

180-93=87.

87/3= 29. So that means x=29.

for proof you can do 3(29)+93 and you'll get 180.

For angle C; 3(29+2)= 3x31. 31x3= 93.  

Angle C= 93 degrees.

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Answer:

D. is your answer

Step-by-step explanation:

8 0
3 years ago
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A cuboid, with dimensions 28cm by 16cm by 15cm, has a volume of 6720cm cube. The cuboid is melted to form smaller cubes of lengt
Dovator [93]

Answer:

Vol of the cube =Vol of cubiod

Vol of each smaller cube =s×s×s= 4×4×4=64

Vol of cuboid /Vol of each smaller cube = no of cubes that can be obtained

6720/64= 105

Hence 105 cubes can be obtained

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3 years ago
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If we times 0 with any number, we can get 0. Then only 8 will remain
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