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
ddd [48]
2 years ago
12

Using a graphical method, solve the simultaneous equations x+y =4 and y=2x+1

Mathematics
1 answer:
adoni [48]2 years ago
7 0

Answer:

(1, 3)

Step-by-step explanation:

Given the expression

x+y = 4 ... 1

y = 2x+1 ....2

Substitute equation 2 into 1

x + (2x+1) = 4

3x + 1 = 4

3x = 4-1

x = 3/3

x = 1

Since y = 2x + 1

y = 2(1) + 1

y = 3

Hence the solution to the equation is (1,3). This means that the coordinate point on the graph where both lines intersect will be at (1, 3)

You might be interested in
Express in simplified exponential notation.<br> x3 • x5 =
Darya [45]
x^3 \times x^5 = x^{3+5} =\boxed{\bf{x^8}}}
5 0
3 years ago
Read 2 more answers
If 4 friends have 8 apples how many will each friend get
Natalka [10]

2 because 8 divided by 4 is 2.

6 0
2 years ago
Read 2 more answers
The store price of a jeans is $50. If the discount given by the store is 45%, calculate the discount amount offered by the store
nata0808 [166]

Step-by-step explanation:

50+45%=72.5

50-45%=27.5

50×45%=22.5

7 0
2 years ago
Read 2 more answers
Is this correct? I have an open dot on 2 with the arrow going to the right if it's not clear
dlinn [17]

Answer:

Yep! an open dot is <

A closed dot means ≤

Hope this helps! :)

If you don't mind please mark as brainliest! :)

7 0
3 years ago
What is the answer to 6x-3(2-3x)
insens350 [35]

Problem: 6x-3(2-3x)

<em>Let's solve!</em>

<em />

First: we expand

6x-(6-9x)

Then we simplify

6x-6+9x

Collect like terms

(6x+9x)-6

Simplify:

15x-6

The answer is 15x-6

5 0
3 years ago
Read 2 more answers
Other questions:
  • Are Abel Fields’s actions protected by the First Amendment?
    9·1 answer
  • What is the square root of 36y16
    13·1 answer
  • PLS HELP ME WITH THIS GEOMETRY QUESTION
    5·1 answer
  • Solve the system using the addition method. State your solution as an ordered pair.
    5·1 answer
  • What is the answer??? 5 + 6x = 2x + 33
    9·2 answers
  • I really don't understand i need help asap. They were asking to find f(-8)
    11·1 answer
  • Can someone help me out
    10·1 answer
  • When 9 2/3 is written in simplest radical form, which value remains under the radical? 3 6 9 O 27​
    8·2 answers
  • Use the properties of rational exponents to simplify the expression.
    7·1 answer
  • What is the difference between an expression and an equation? Answer using RAE.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!