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
Contact [7]
3 years ago
9

How to work this problem

Mathematics
2 answers:
In-s [12.5K]3 years ago
5 0
So in order to use the substitution method, you rearrange one to have a variable isolated, so i isolated y. Then you plug in and solve for the other variable, then plug in that to an equation to find the remaining variable.

Mazyrski [523]3 years ago
3 0
7x + 9y = - 27_________eq1
3x - y = 3__________eq2
Multiply eq 2 by 9 and then add the resulting eq with eq1.

eq2 x 9 gives us   27x - 9y = 27___________eq3
 
add eq3 with eq1 we get.
34x = 0.
where x=0/34
x=0.
substitute x into any of the above equations to get y.
substitute x into eq1. we get:
7(0) + 9y =-27
9y = -27
y= -27/9
y = -3.
You might be interested in
State the domain and range of the function represented by the table.
Grace [21]

SORRY IF I'M WRONG ...

Answer: Domain:{-4,-1,0,3) Range:{-4}

3 0
3 years ago
WILL MARK YOU BRAINLIEST HURRY!
dangina [55]
Answer C lil bro that right
4 0
3 years ago
Read 2 more answers
Consider the sequence given by the formula a(n + 1) = 5a(n) and a(1) = 2 for n ≥ 1.
saw5 [17]

Answer:

The formula means; a of the next arithmetic n equals to 5 multiplied by a of the preceding n knowing that a of when n=1 is 2 and n must be 1 or greater than 1.

Step-by-step explanation:

a(n + 1) = 5* a(n)  for n≥1

given that

a(1) = 2

therefore:

when n = 1, a(2) = 5* a(1) = 5 * 2 = 10

when n = 2, a(3) = 5*a(2) = 5 * 10 = 50

.

.

.

The formula means; a of the next arithmetic n equals to 5 multiplied by a of the preceding n knowing that a of when n=1 is 2 and n must be 1 or greater than 1.

3 0
3 years ago
Choose the arithmetic series that is associated with this summation.
Verizon [17]
Plug n = 1 into the expression 20-9n and we get
20-9n = 20-9*1 = 20-9 = 11

So 11 is the first term of the series that we add up. Therefore the answer must be choice C, which has 11 listed as the first term added
7 0
3 years ago
Simplify 10 – 3x – 13 + 5x<br><br> A. 2x – 3<br><br> B. 1<br><br> C. 3 – 3x<br><br> D. 3 – 2x
sukhopar [10]
D ..................................................................................................................
7 0
4 years ago
Read 2 more answers
Other questions:
  • The measure of angle 4 is 120 degrees, and the measure of angle 2 is 35 degrees. What is the measure of angle 5?
    9·1 answer
  • How is the area of a semicircle found?
    12·1 answer
  • What is the value of 5^2 * 5^3 written as a singular expression? How would you show your work to prove that this expression is e
    8·1 answer
  • A food critic collected data on the lengths of time customers waited for their food. Order the data from least to greatest time.
    7·1 answer
  • It costs $35 per hour to rent a boat at the lake. You also need to pay a $25 fee for safety equipment. You have $200. For how lo
    7·1 answer
  • Which figure represents the image of parallelogram
    15·1 answer
  • I need help !! I’ll give brainliest for the correct answer.
    8·1 answer
  • The perimeter of the base of a square pyramid is 64 inches. The slant height of the pyramid is 9 inches. What is the surface are
    15·2 answers
  • for the second quarter of 2016, a company posted a loss of $480 million due to a decline in sales. If this trend were consistent
    9·1 answer
  • Hey guys please help? Trigonometry
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!