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Dmitry_Shevchenko [17]
3 years ago
7

Find the value of x

Mathematics
1 answer:
raketka [301]3 years ago
5 0

Answer:

65

Step-by-step explanation:

remember a TRIANGLE always have a 180 degrees total angle,

so 45+70=115

180-115=65

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What is x+3y=-11 -9y=33+3x in college algebra
slavikrds [6]
<span>x + 3y= -11 (1)
</span><span>-9y = 33 + 3x  ---->3x + 9y = -33 (2)

divide (2) equation by 2
</span>3x + 9y = -33
  x + 3y = -11 (2')
and equation (1) is also x + 3y= -11 (1)
so
x + 3y= -11 (1)
x + 3y= -11 (2')
---------------------subtract
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2 years ago
Kip is using a recipe that calls for 1/4 cup of lemon juice. He has a 6-fluid- ounce bottle of lemon juice. There are 8 fluid ou
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2 years ago
Which equations have the same value of x as 2/3(6x+12)=-24? Check all that apply.1. 4x+8=24 2. 9x+18=-24 3. 4x+12=-24 4. 18x+36/
Neko [114]

Answer: Hence, Option (6) and (8) are correct as their value is also "-8".

Step-by-step explanation:

Since we have given that

\frac{2}{3}(6x+12)=-24

First we need to solve to get the value of 'x' :

\frac{2}{3}(6x+12)=-24\\\\6x+12=\frac{3}{2}\times (-24)\\\\6x+12=3\times (-12)\\\\6x+12=-36\\\\6x=-36-12\\\\6x=-48\\\\x=\frac{-48}{6}\\\\x=-8

Therefore, x=-8

Now, we will check all the options :

1) 4x+8=24

4x+8=24\\\\4x=24-8\\\\4x=16\\\\x=\frac{16}{4}=4

2) 9x+18=-24

9x+18=-24\\\\9x=-24-18\\\\9x=-42\\\\x=-4.67

3) 4x+12=-24

4x+12=-24\\\\4x=-24-12\\\\4x=-36\\\\x=\frac{-36}{4}=-9

4) 18x+36/2=-24

18x+18=-24\\\\18x=-24-18\\\\18x=-42\\\\x=-2.34

5) 4x=-36

x=\frac{-36}{4}=-9

6) 4x=-32

x=\frac{-32}{4}=-8

7) x=-9

8) x=-8

Hence, Option (6) and (8) are correct as their value is also "-8".

5 0
4 years ago
Read 2 more answers
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