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
Law Incorporation [45]
3 years ago
9

Solve the system x+2z=30 y+z=12 z=1

Mathematics
1 answer:
monitta3 years ago
6 0

Answer:

x=28 y=11 z=1

Step-by-step explanation:

plug in 1 for z in x+2z=30 to get x+2(1)=30. Then you should get x+2=30 which is x=28.

Then, plug 1 in for the second equation of y+z=12 so you get y+1=12. Then you should get y=11.

You might be interested in
Find the sales tax of 48
Sindrei [870]
I think it is 1.29$ it might be wrong
7 0
3 years ago
Read 2 more answers
Assuming that the petals of the flower are congruent, how many lines of symmetry does the figure have? A. 0 B. 4 C. 6 D. 8
LUCKY_DIMON [66]
From my understanding it is .d

7 0
4 years ago
What is the measure of Angle J K L?
ivanzaharov [21]

Answer:

97 degrees

Step-by-step explanation:

180 degrees minus 83 degrees is 97 degrees

3 0
3 years ago
Read 2 more answers
A square rug covers 79 square feet of floor. What is the approximate length of one side of the rug? (approximate to the nearest
Sonbull [250]

Answer:

8.89 feet

Step-by-step explanation:

\sqrt{79} = 8.888, rounded to nearest hundredth would be 8.89

4 0
3 years ago
Solve for x and y<br>17) 2x - 3y = -1<br>y = x-1​
Cloud [144]

Answer:

x = 4 , y = 3

Step-by-step explanation:

Solve the following system:

{2 x - 3 y = -1 | (equation 1)

y = x - 1 | (equation 2)

Express the system in standard form:

{2 x - 3 y = -1 | (equation 1)

-x + y = -1 | (equation 2)

Add 1/2 × (equation 1) to equation 2:

{2 x - 3 y = -1 | (equation 1)

0 x - y/2 = (-3)/2 | (equation 2)

Multiply equation 2 by -2:

{2 x - 3 y = -1 | (equation 1)

0 x+y = 3 | (equation 2)

Add 3 × (equation 2) to equation 1:

{2 x+0 y = 8 | (equation 1)

0 x+y = 3 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 4 | (equation 1)

0 x+y = 3 | (equation 2)

Collect results:

Answer: {x = 4 , y = 3

4 0
4 years ago
Other questions:
  • Brian correctly used a method of completing the square to solve the equation x2+7x-11=0. Brian's first step was to rewrite the e
    11·1 answer
  • Find the volume of the square pyramid shown. Round to the nearest whole number. The diagrams are not drawn to scale.
    12·2 answers
  • Someone do this for 25 points ?
    6·1 answer
  • The school taxes on a house assessed at $210,000 are $2340. At the same tax rate, what are the taxes (to the nearest dollar) on
    12·2 answers
  • A cone of radius 3cm and slant height 6cm is cut into four identical pieces. Calculate the total surface area of the four pieces
    7·1 answer
  • 2) Jim get $200 for 50 sales, $350 for 70 sales, and $500 for<br> 85 sales. This is called
    5·1 answer
  • Is 87 + 53 positive or negative?
    10·2 answers
  • a bag of potato chips states that it weight is 5 2/3 oz the maximum measurement error is -+2/5 oz . write an absolute value ineq
    14·1 answer
  • PLEASE HELP AND GET 25 POINTS! ❄️<br><br> Please see the image
    12·1 answer
  • In the sequence S of numbers, each term after the first two terms is the sum of the two immediately preceding terms. What is the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!