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Vaselesa [24]
3 years ago
7

What is the value of x? see attachment below

Mathematics
1 answer:
Kitty [74]3 years ago
4 0

Answer:

  x = 31

Step-by-step explanation:

The perimeter is the sum of the equal-length sides:

  63 = (x -10) +(x -10) +(x -10)

  63 = 3x -30 . . . . . . . . collect terms

  21 = x -10 . . . . . . . . . . divide by 3

  31 = x . . . . . . . . . . . . . add 10

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37% of 293 estimate​
earnstyle [38]

Answer:

108.41

Step-by-step explanation:

7 0
2 years ago
Can someone plz help me with this!
asambeis [7]

Answer:

(arranged from top to bottom)

System #3, where x=6

System #1, where x=4

System #7, where x=3

System #5, where x=2

System #2, where x=1

Step-by-step explanation:

System #1: x=4

2x+y=10\\x-3y=-2

To solve, start by isolating your first equation for y.

2x+y=10\\y=-2x+10

Now, plug this value of y into your second equation.

x-3(-2x+10)=-2\\x+6x-30=-2\\7x=28\\x=4

System #2: x=1

x+2y=5\\2x+y=4

Isolate your second equation for y.

2x+y=4\\y=-2x+4

Plug this value of y into your first equation.

x+2(-2x+4)=5\\x+(-4x)+8=5\\x-4x+8=5\\-3x=-3\\x=1

System #3: x=6

5x+y=33\\x=18-4y

Isolate your first equation for y.

5x+y=33\\y=-5x+33

Plug this value of y into your second equation.

x=18-4(-5x+33)\\x=18+20x-132\\-19x=-114\\x=6

System #4: all real numbers (not included in your diagram)

y=13-2x\\8x+4y=52

Plug your value of y into your second equation.

8x+4(13-2x)=52\\8x+52-8x=52\\0=0

<em>all real numbers are solutions</em>

System #5: x=2

x+3y=5\\6x-y=11

Isolate your second equation for y.

6x-y=11\\-y=-6x+11\\y=6x-11

Plug in your value of y to your first equation.

x+3(6x-11)=5\\x+18x-33=5\\19x=38\\x=2

System #6: no solution (not included in your diagram)

2x+y=10\\-6x-3y=-2

Isolate your first equation for y.

2x+y=10\\y=-2x+10

Plug your value of y into your second equation.

-6x-3(-2x+10)=-2\\-6x+6x-30=-2\\-30=-2

<em>no solution</em>

System #7: x=3

y=10+x\\2x+3y=45

Plug your value of y into your second equation.

2x+3(10+x)=45\\2x+30+3x=45\\5x=15\\x=3

3 0
3 years ago
Rewrite 11/12 and 14/15 so that they have a common denominator
djyliett [7]
The least common denomonator is 60
8 0
3 years ago
Read 2 more answers
Pleaseeeee hurryy need help!!
lord [1]

it is the last one

Step-by-step explanation:

by simplifying powers it becomes

8g^8/64h ^5

simplifying it further gives

g^8/ 8h^5

8 0
3 years ago
Read 2 more answers
Please help (screenshot included)
umka2103 [35]

Answer:

16 hours

Step-by-step explanation:

company A $800 plus $16 per hour

company B $720 plus $21 per hour

im going to start with 10 and go from there

company A

16 x 10 = 160

800 + 160 = 960

company B

21 x 10 = 210

720 + 210 = 930

it needs to go up so lets try 15

company A

16 x 15 = 240

800 + 240 = 1040

company B

21 x 15 = 315

720 + 315 = 1035

one more maybe 16

company A

16 x 16 = 256

800 + 256 = 1056

company B

21 x 16 = 336

720 + 336 = 10 56

4 0
3 years ago
Read 2 more answers
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