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
Lisa [10]
3 years ago
8

Solve the system using elimination. 3x + 3y = –9 3x – 3y = 21

Mathematics
1 answer:
Bas_tet [7]3 years ago
3 0
<span>3x + 3y = –9
3x – 3y = 21
-----------------add
6x = 12
x = 2

</span>3x + 3y = –9 
3(2) + 3y = -9
6 + 3y = -9
3y = -15
y = -5

x = 2 and y = -5

answer: <span>C. (2, –5)</span>
You might be interested in
Find the x-coordinate of Q' after Q(-2. 5) was reflected over the line y = -x + 4.
Alina [70]
Oh hello thereeeeeeee
3 0
3 years ago
What is the domain and range of the following:
Mnenie [13.5K]
The domain and range is the foreman range 60
6 0
3 years ago
If (a,1),(-2,b).(c,-3) are points on the straight line 2x + y = 3x - y +1. Find the values of a, b and c. THANK YOU FOR THR PERS
Lisa [10]

Answer:

it’s g ! i just turned it in and it’s g :)

6 0
3 years ago
the circumference of a circle is about 25.3 in find the area of the circle using 3.14 as an approximation for pie.Round your ans
sertanlavr [38]
<span>50.962 is answer m8t</span>
3 0
3 years ago
NEED ANSWER ASAP<br> MARKING BRAINLIEST
neonofarm [45]

Answer:

Step-by-step explanation:

Area of an equilateral triangle = \frac{\sqrt{3}}{4} } a^{2}

Sub in your value of 16ft

A = \frac{\sqrt{3}}{4} }  *16^{2}

A = 110.85 ft^{2}

4 0
3 years ago
Other questions:
  • Point A is at (-3,-5) and point M is at (-1,-7)
    5·2 answers
  • A rectangular piece of metal is 20 in longer than it is wide. Squares with sides 4 in long are cut from the four corners and the
    6·1 answer
  • How much pure acid should be mixed with 5 gallons of a 50% acid
    14·1 answer
  • How many cups are in 1 quart?​
    14·1 answer
  • Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recip
    9·1 answer
  • Help a girl out?<br>what is the solution to -3/4 x + 2&lt;7?​
    15·2 answers
  • Example: Find the circumference of the circle with a radius of 5 inches. Solution: Step 1: Write down the formula: IC = 2tr Step
    15·1 answer
  • Golf balls cost $0.90 each at Emma’s Club, which has an annual $25 membership fee. At Wendy &amp; Marilyn’s sporting goods store
    13·2 answers
  • Find the percentage change from<br> 40 to 60.
    6·1 answer
  • Concrete tiles are made using buckets of cement, sand and gravel mixed in the ratio 1:4:6. If 20 buckets of sand are used, how m
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!