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
A principal of $4700 was invested at 4.75% interest, compounded annually.
Kitty [74]

Answer:

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

y = P(1 + r/n)^nt

Where

y = the value of the investment at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount invested

From the information given,

P = $4700

r = 4.75% = 4.75/100 = 0.0475

n = 1 because it was compounded once in a year.

Therefore, the exponential function showing the relationship between y and t is

y = 4700(1 + 0.0475/1)^1 × t

y = 4700(1.0475)^t

7 0
3 years ago
at the school festival , raffle tickets were sold at $1 each, or 3 for $2. At the end of the day, 15 books of tickets, each cont
andrew-mc [135]

Answer:

you have to take away you word they said how many

5 0
3 years ago
For the fraction 3/25, (a) write a percent and (b) write a decimal.
Marysya12 [62]

Answer:

12%

.12

Step-by-step explanation:

3/25 * 4/4 = 12/100

We know that out of 100 means percent

12%

Since it is over 100, move the decimal 2 places to the left

.12

6 0
3 years ago
Read 2 more answers
What is the value of the expression below when w=5w=5? 4w+9 4w+9
mart [117]

Answer:

29

Step-by-step explanation:

substitute 5 where the <em>w</em> goes in the expression.

It should look like  4 • 5 + 9

Using the order of operations ( PEMDAS ) multiply 4 • 5 to get 20 and then add 9 to get 29

8 0
3 years ago
Relate a vertical line test to understanding functions.
timofeeve [1]

Answer:

Hello,

I am not sure if you are still having an issue with this problem but for future reference for you or anyone else the answer is

d. Each vertical line drawn through the graph will intersect a function in only one location.

I thought of it this way:

"Each vertical line" which tells me only one line per "one location" now I could be completely off but this was just my logic and it helped me personally.

8 0
3 years ago
Other questions:
  • Jamie invests $1,200 in an account that earns 3% interest. Assuming continuous compounding, how much is in his account after 7 y
    11·1 answer
  • There are 95 cherry pieces in 5 bags of candy.How many pieces per bag?
    14·1 answer
  • How am I suppose to solve this?
    11·1 answer
  • Which of the below descriptions shows a possible HAMILTON PATH?
    11·1 answer
  • PLEASE ANSWERRRRRR
    9·1 answer
  • He lays the short edge of the paper along the short edge of the frame several times and finds the frame is 3 papers wide. How lo
    6·2 answers
  • 3-7 Please Help BRAINLEST
    9·2 answers
  • Need a correct answer <br> A B C D E F
    5·1 answer
  • HELP FASTT PLEASE
    5·1 answer
  • Origami is the Japanese art of paper folding. The diagram below represents an unfolded paper kabuto, a samurai warrior's helmet.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!