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
Gnom [1K]
3 years ago
14

What is the solution to this system of equations? a+b=9 a-b=3

Mathematics
1 answer:
ladessa [460]3 years ago
8 0

Answer:

A. (6,3)

Step-by-step explanation:

You might be interested in
Find the value of x.
Brrunno [24]

Answer: x=133

Step-by-step explanation:

This is a hexagon that has a total of 720 degrees (which you can get by the formula of degrees = (# of sides – 2) * 180).

You first add up all your side:

150+130+97+120+90 +x = 587 + x

587+x = 720

x=133

3 0
3 years ago
Figure A is a scale image of Figure B. What is the value of x?
rewona [7]

Answer:

x=30

Step-by-step explanation:

to find the value of x you have to find K(constant number).

\frac{x}{45}=\frac{18}{27}\\\frac{x}{45}=\frac{2}{3}\\  3(x)=45*2\\3x=90\\x=\frac{90}{3}\\ x=30

8 0
3 years ago
Read 2 more answers
A textbook store sold a combined total of 477 sociology and math textbooks in a week. The number of sociology textbois sold was
denpristay [2]

Answer:

The correct answer is 218 math textbooks and 259 sociology textbooks.

Step-by-step explanation:

To solve this problem, we can make a system of equations. Let the number of sociology textbooks sold be represented by the variable "s" and the number of math textbooks sold be represented by the variable "m". Using these variables, we can make two equations:

s + m = 477

m + 41 = s

There are many ways to solve this system of equations. One approach we can take is substituting the value for s given by the second equation into the first equation. This is modeled below.

s + m = 477

(m + 41) + m = 477

Combining like terms on the left side of the equation yields:

2m + 41 = 477

Subtracting 41 from both sides of the equation gives us:

2m = 436

Finally, dividing both sides of the equation by 2 gives us:

m = 218

To solve for the number of sociology textbooks, we can substitute into either of our original equations.

m + 41 = s

(218) + 41 = s

s = 259

Therefore, your answer is m = 218 and s = 259, or 218 math textbooks and 259 sociology textbooks were sold.

Hope this helps!

6 0
2 years ago
PLEASE HELP! I WILL MARK BRAINLIEST! Which type of lines is shown in the illustration above?
Rainbow [258]
D intersecting lines
6 0
2 years ago
Read 2 more answers
(-2,-1) is a solution of the equation 4x + 5y = -13.
Art [367]

Answer:

true

Step-by-step explanation:

4x + 5y = -13.

Substitute the point in

4(-2) + 5(-1) = -13

-8+-5 = -13

-13 = -13

This is true so the point is a solution

5 0
2 years ago
Other questions:
  • What is the value of the function at x=−2?
    10·1 answer
  • rainer bought 1.43 pounds of lunch meat at the store for 10.98.what was the unit rate (price) of the lunch meat?
    9·2 answers
  • Suppose you got 3 out every 4 questions correct on your homework. How many total questions were on the homework if you got 12 qu
    13·1 answer
  • Todd plans to swim 18 laps in the pool. Each lap is 50 yards. So far Todd has
    13·2 answers
  • Adam’s bank account has a balance of $1213.69 before he starts spending money. He makes the following transactions:
    13·2 answers
  • Helpp with this math.
    10·2 answers
  • A contractor is buying doors for a new office building. If two doors are
    9·1 answer
  • A line passes through the points (8, 1) and (6, 7). What is the slope of the line? Answer choices: A)-3 B) -1/3 C) 1/3 D)3
    14·1 answer
  • Please help now i need this quick
    8·2 answers
  • 30 POINTS PLS HELP
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!