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
Anon25 [30]
3 years ago
13

Solve the system using substitution. Show your work. x = -4y + 9 x - y = 4

Mathematics
2 answers:
lesya692 [45]3 years ago
7 0
X = -4y + 9
x - y = 4

- rearrange the second equation to x = 4 + y
- then we can plug it into x for the first equation

4 + y = -4y + 9 — then we solve for y
y = -4y + 5
5y = 5 -> y = 1

we can then plug in 1 (our y value) into the original second equation.

x - 1 = 4 -> x = 5

x = 5 & y = 1
you should put it in a coordinate layout so:
(5,1)

hope this helped !!
FromTheMoon [43]3 years ago
6 0

Answer:

please what should we found? is it the value of ×or y

You might be interested in
2 1/4 simplified with 1/4
kow [346]

2 1/4 +1/4

9/4+1/4=10/4=5/2=1 3/2

1 3/2


4 0
2 years ago
Definition of order or operations
Nataliya [291]

Order of operations: the rules of which calculation comes first in an expression.

They are: PEMDAS

<span><span>Do everything inside parentheses first: ()
</span><span>then do exponents: x2
</span><span>then do multiplies and divides from left to right
</span><span>lastly do the adds and subtracts from left to right</span></span>
8 0
2 years ago
Read 2 more answers
What is 320 million in scientific notation?
astraxan [27]
The scientific notation:  3.2 x10^2
8 0
3 years ago
Read 2 more answers
What is the value of the expression 2x3y when x= −2 and y = 3?
klemol [59]
I think it’s -36, not 100% sure though
6 0
2 years ago
Given the graph of the function f below, estimate the intervals in which fis<br> increasing.
nadezda [96]

Answer:

  (-∞, -5/2) ∪ (1, ∞)

Step-by-step explanation:

"Increasing" means the graph goes up to the right. It is increasing from the left up to the local maximum--the peak at left.

It is increasing again from the local minimum on the right to the right side of the graph.

The two sections where the graph is increasing are ...

  (-∞, -5/2) ∪ (1, ∞)

__

The graph is <em>decreasing</em> between the maximum on the left and the minimum on the right.

6 0
3 years ago
Other questions:
  • Solve a/b x - c = 0 for x.
    6·1 answer
  • Which expression gives the length of the transverse axis of the hyperbola shown below?
    7·2 answers
  • The length of a rectangle is 3 ft more than twice the width, and the area of the rectangle is 35 ft2 . find the dimensions of th
    6·1 answer
  • Help! please?Thanks.<br> ~Crystal daves
    6·1 answer
  • Factor the polynomial using the pattern x^2+9x+18
    11·2 answers
  • A rabbit runs at a rate of 25 miles per hour. Write a rule to describe the function.
    11·1 answer
  • 15 points!!! GEOMETRY help please!!<br> Questions attached!
    11·1 answer
  • Combine like terms in the expression -4x+7x-2y+7y​
    11·1 answer
  • S = n(a+1) for a <br><br> please answer asap
    14·1 answer
  • Garrett can order stickers from two
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!