1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ratelena [41]
3 years ago
15

-2x + 2y + 3z = 0 -2x - y + z = -3 2x + 3y + 3z = 5

Mathematics
1 answer:
lyudmila [28]3 years ago
8 0

Steps:

isolate " x "  for -2x + 2y  + 3z  = 0 ;    x = -  ( - 3z - 2y ) / 2

Subsititute : x = -  ( - 3z - 2y ) / 2

- 2 * (  - ( - 3z - 2y ) / 2 ) - y + z = - 3

2 * ( -  ( - 3z - 2y ) / 2 ) + 3y  + 3z  =5

isolate " z " for  :  - 2  ( -  ( - 3z - 2y ) / 2 ) - y+ z = - 3 ;  z = - ( - 3 +  3y / 2 )

subsititute  z = - ( - 3 + 3y / 2 ) :

2* ( - ( -3* ( - ( - 3 +3y / 2 ) - 2y / 2  ) + 3y  + 3  ( - ( - 3 + 3y / 2 ) = 5

isolate y for 2 ( -( - 3 ) - 3 + 3y / 2 ) - 2y / 2 ) + 3y + 3 ( - ( - 3 + 3y / 2 ) = 5

y = 1

for z =  - ( - 3+ 3y ) / 2

subsititute y = 1

z = - ( - 3 + 3  * 1 ) / 2

z =  0

For x  = - ( - 3z - 2y ) / 2

subsititute y = 1

subsititute z = 0

x = -  ( - 3 *0 - 2 * 1 ) / 2

x =  1

x = 1  , y =  1  , z = 0



You might be interested in
Help me I’m struggling
Ad libitum [116K]

Answer:

Hey there!

(8^2)^-4=8^2(-4), or 8^-8

8^-8 can be expressed as the third option.

Hope this helps :)

5 0
3 years ago
A. If the average ticket price is $15
Westkost [7]

Answer:

He had been in a hospital with friends since his birth

5 0
2 years ago
There were 32 skaters at the rink on Friday. On Saturday, there were 27 skaters at the
shtirl [24]

Answer: 32 + 27 = 59

Step-by-step explanation:

5 0
3 years ago
IXL geometry please help!
Sedaia [141]
<h3>Answer: 32 degrees</h3>

================================

Work Shown:

Inscribed angle theorem

arc measure = 2*(inscribed angle)

arc ABC = 2*(angle D)

arc ABC = 2*(35)

arc ABC = 70 degrees

-------------

break arc ABC into its smaller pieces

(minor arc AB)+(minor arc BC) = arc ABC

(38)+(minor arc BC) = 70

minor arc BC = 70-38

minor arc BC = 32

8 0
3 years ago
Marie is bringing bagels and cream cheese to school as a birthday snack for her class. The cost of b bagels and c packages of cr
emmasim [6.3K]

Answer:

$30.50

Step-by-step explanation:

b = bagels

c = cream cheese

<u>Given</u>

b = 30

c = 2

<u>Work:</u>

0.85b+2.5c

0.85(30) + 2.5(2)

25.5 + 5

30.5

4 0
3 years ago
Other questions:
  • Simone is going snowboarding tomorrow if the temperature is equal to or colder than 5 degrees C. Write an inequality that is tru
    7·2 answers
  • Plot all ordered pairs for the values in the domain. D: {-8, -4, 0, 2, 6}
    8·1 answer
  • Triangle QRS is dilated according to the rule DO,2 (x,y). On a coordinate plane, (0, 0) is the center of dilation. Triangle Q R
    11·2 answers
  • What's the sender to 9 and 12
    10·2 answers
  • Add.
    5·2 answers
  • If the polynomial 6x6 – 4x5 + 9x – 6 is to be factored by grouping, which step should be taken?
    6·1 answer
  • Rodger put $1,000 in a bank account that pays 5% annual simple interest. At the end of four years, how much interest has he earn
    8·1 answer
  • In a flower garden, there are 6 tulips for every 7 daisies. If there are 36 tulips, how many daisies are there? A. 42 B. 48 C. 4
    14·2 answers
  • Write a one-paragraph summary to describe how to solve this two-step equation -3x + 8 = 18
    5·2 answers
  • Plug x back in. What is the measurement of (8x - 20) degrees
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!