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Oksana_A [137]
1 year ago
10

Given that 4x-y=5 4y-z=7 and 4z-x=18 what is the value of x+y+z

Mathematics
2 answers:
FromTheMoon [43]1 year ago
7 0

Answer:

x + y +z= 10

Step-by-step explanation:

4x - y = 5  ---------(I)

 4y - z = 7 ---------(II)

4z - x = 18 ---------(III)

Add all the three equations,

  4x - y + 4y - z + 4z - x = 5 + 7 + 18

  4x - x  -y + 4y -z + 4z  = 30

              3x + 3y + 3z = 30

Divide the entire equation by 3

               \sf \dfrac{3x}{3}+\dfrac{3y}{3}+\dfrac{3z}{3} = \dfrac{30}{3}

                 x + y + z = 10

mina [271]1 year ago
3 0
Using simultaneous equations,
x=2, y=3, z=5.

Therefore x+y+z
=2+3+5
=10
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Answer:

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Answer:

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3 0
3 years ago
Please help me with precalculus??<br>linear and angular speed
Anit [1.1K]
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what is the radians per seconds "w" in revolutions per minute?  just another conversion like in 13)

\bf \cfrac{\underline{\pi} }{3~\underline{sec}}\cdot \cfrac{rev}{2\underline{\pi }}\cdot \cfrac{60~\underline{sec}}{min}\implies \cfrac{60 ~rev}{3\cdot 2 ~min}\implies \cfrac{60 ~rev}{6 ~min}\implies 10\frac{rev}{min}
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suppose you have three consecutive integers. The greatest of the three integers is twice as great as the sum of the first two. W
zvonat [6]

Answer:

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0 = x

6 0
2 years ago
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