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
nikklg [1K]
2 years ago
13

Solve using elimination. 9x + 2y = -5 -9x + y = 11

Mathematics
1 answer:
cupoosta [38]2 years ago
8 0

Answer:

(-1, 2)

Step-by-step explanation:

9x+2y=-5

-9x+y=11

If you notice that these two equations can be easily worked out with since 9x (from the first equation) and -9x (from the second equation) can be easily eliminated. So, you will start adding the left numbers/variables from the two equations.

<em>9x</em>+2y=-5

<em>-9x</em>+y=11

2y+y=3y (every variable has a secret/hidden 1)

-5+11=6

3y=6

(divide 6 by 3)

y=2

Replace the value of y into ANY of the equations from the question. (I would be using the second one)

-9x + y = 11

-9x+2=11

(now just do simple algebra)

-9x=9

x=-1

You might be interested in
Bill bought 6 boxes of chocolates. Each box cost $6.57. How much did he spend?<br> ?
lawyer [7]
6 multiplies by 6.57 gives ya 39.42
3 0
3 years ago
Read 2 more answers
Help this test is due at 11! *No links please*
Taya2010 [7]

Answer:

A) Volume of Prism = 48 ft cubed

B) Volume of Pyramid = 16 ft cubed

C) 1/3

This equation is true for all rectangular prisms and rectangular pyramids with the same length, same width, and same height.

Step-by-step explanation:

1) find the volume of the prism

2) volume of a prism = Length x Width x Height

3) 4 x 2 x 6 = 48

4) find the volume of the pyramid

5) volume of a pyramid = Length x Width x Height divided by 3

6) 4 x 2 x 6 = 48 divided by 3 = 16

Hope this helps :)

7 0
3 years ago
A cheesecake recipe says, “Mix 12 oz of cream cheese with 15 oz of
miskamm [114]

Answer:

1.5

Step-by-step explanation:

it is one and one half, in other words.

3 0
3 years ago
Want to learn symmetry?<br>​
Zanzabum

Answer:

yea

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The two dot plots represent a sample of the number of people in households in two towns. Which statements are true about the dat
marta [7]

Answer:

both have the same amount of dots I know that.

Step-by-step explanation:

also, I love the profile picture:)

5 0
3 years ago
Read 2 more answers
Other questions:
  • How many solutions are there to the following system of equations?
    8·1 answer
  • A shirt on sale with a 25% count. The original price price of the shirt was $28 will Wayne have enough money to buy the shirt if
    7·2 answers
  • a woman jogging at 6mi/hr passes a man biking in the opposite direction at 12mi/hr. If they maintain their speeds, how far from
    14·1 answer
  • A quadratic equation is shown below:
    14·1 answer
  • If 20.0 mL of Ca(OH)2 with an unknown concentration is neutralized by 37.5 mL of 0.124 M HCl, what is the concentration of the C
    6·1 answer
  • The weather forecast calls for a total of 16 inches of snow over the next week. If it is estimated that 2.8 inches of snow will
    10·2 answers
  • As an estimation we are told 5 miles is 8 km. <br> Convert 33.7 miles to km.
    8·1 answer
  • Calculate the value of x for the following equations. Show your working.​
    7·2 answers
  • Write each phrase or sentence as an algebraic expression or equation. DO NOT use a calculator. Do not write an inequality.
    13·2 answers
  • Find the length of AB, given that be is a median of the triangle and AC = 30.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!