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
Otrada [13]
3 years ago
11

I have a question about alegbra... I need to use substitution to solve the system of equations x + y = 12 & x - y = 2. pls s

how work..

Mathematics
2 answers:
navik [9.2K]3 years ago
8 0
X= 12-y x=2+y
2+y=12-y
y=10-y
2y=10
y=5

x-y=2
x-5=2
x=7
Thepotemich [5.8K]3 years ago
7 0
X = 7 Y = 5 just add to get rid of a variable

You might be interested in
todd can ride 45 miles in 5 hours. write an equation to find m, the number of miles Todd can ride in h hours​
Lera25 [3.4K]
Divide 45 by 5 and 5 hours by 5 so it’s 9 miles per hour. So the equation would be: m = 9/h (a fraction)
5 0
3 years ago
I need help with these 3 questions
mixas84 [53]

Answer:

1. 280km

that's all I feel like doing

3 0
3 years ago
Plz solve this question mhanifa
cluponka [151]

Answer:

  • Option B

Step-by-step explanation:

<u>Given:</u>

  • 4 - 3i

<u>Conjugate of the given number is:</u>

  • 4 + 3i

<u>Divide the given number by its conjugate:</u>

  • (4 - 3i) / (4 + 3i) =
  • (4 - 3i)(4 - 3i) / (4 + 3i)(4 - 3i) =
  • (16 + 9i² - 24i) / (16 - 9i²) =
  • (16 - 9 - 24i) / (16 + 9) =
  • (7 - 24i) / 25 =
  • 7/25 - 24i/25

Correct choice is B

5 0
3 years ago
Solve the equation by factoring. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decim
ArbitrLikvidat [17]

Answer:

What are the numbers in the parentheses?

3 0
2 years ago
What is the percent increase each year for the investment?
Anna [14]

Answer:

11.5%.

Step-by-step explanation:

Looking at the base of the exponent, it can be seen that it is 1.115. 1.00 is equal to 100% of the investment value each year. There is an additional 0.115, which is equivalent to 11.5%, which represents the increase in the investment value each year.

Therefore, the percent increase each year for the investment is 11.5%.

4 0
3 years ago
Other questions:
  • A number is being written in scientific notation. The student moves the decimal point to the left 3 places and _____.
    8·2 answers
  • I’m so bad at these problems so please help ): would it also be mm or square mm
    10·2 answers
  • What is the standard form of the following equation?<br> y+3=1/4x
    13·1 answer
  • Find two square numbers that have a sum of 130
    15·1 answer
  • Elizabeth wants to change cell phone plans. Before contacting the service provider, she makes a table of her cell phone minutes
    11·1 answer
  • Find K: mx=p(z/x+k + 2s/y)
    11·1 answer
  • Please help me with this questions
    9·1 answer
  • Find the mean, median, and mode for the data set below.<br> weights of books (oz): 10 9 9 14 13 11
    9·1 answer
  • Casey walked 2.1 miles to the grocery store. She then walked 0.5 miles to the post office and 0.8 miles to work. How far did she
    15·1 answer
  • What is next number in pattern 7, 11, 2, 18, -7
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!