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lutik1710 [3]
3 years ago
11

Find the area of this question

Mathematics
1 answer:
oee [108]3 years ago
7 0
The answer to this question whould be that the area is 20
You might be interested in
Discussion for Applications of Linear Systems
Lostsunrise [7]

Step-by-step explanation:

There are certain methods for solving a system of equations. Some of which are:

  • Substitution Method
  • Elimination Method
  • Graphing Method

<em>Substitution Method</em>

Substitution method to solve a system of equations is suitable if a variable of a any equation seems isolated or could comfortably be isolated without any ration/fraction resulting.

For example, for the following system of equations

x - 2y = 11....[A]

x = 5 - y....[B]

substituting the value of x = 5 - y from equation [B] into equation [A], so that

(5 - y) - 2y = 11

5 - y - 2y = 11

3y = -6

y = -2

<em>Elimination Method</em>

Elimination method to solve a system of equations is suitable if both equation are in standard form, and just adding or subtracting the equations to determine an equation in one variable.

For example, for the following system of equations

2x + 7y = -5....[C]

5x - 7y = 12....[D]

Adding Equation [C] and Equation [D].

7x + 0 = 7

x = 1

<em>Graphing Method</em>

Sometimes graphing method may be used to solve the system of the equation and visualize the solution.

For example,

y = -2....[E]

y = 3x + 1....[F]

The solution for this system of equation is the point of intersection of both the lines, which is shown in attached figure. The point of intersection is (-1, -2).

Hence, the solution of this system of equations is (-1, -2), as shown in attached figure.

<em>Keywords: system of equations, elimination method, substitution method, graphing method</em>

<em>Learn more about solution of system of equations from brainly.com/question/2643311</em>

<em>#learnwithBrainly</em>

6 0
3 years ago
Tom has twice as many marbles as luke. together they have 39 marbles. how many marbles does tom have?
irga5000 [103]
Tom has 26 marbles total. 
3 0
3 years ago
Read 2 more answers
NEED HELP GIVING BRAINLIEST
Pie

For this case we have by definition, that the equation of a line in the slope-intersection form is given by:

y = mx + b

Where:

m: It's the slope

b: It is the cutoff point with the y axis

We need two points through which the line passes to find the slope:

(0, -4)\\(1,0)

We found the slope:

m = \frac {y2-y1} {x2-x1}\\m = \frac {0 - (- 4)} {1-0} = \frac {4} {1} = 4

So, the equation is of the form:

y = 4x + b

We substitute a point to find "b":

-4 = 4 (0) + b\\-4 = b

Finally, the equation is:

y = 4x-4

Answer:

Option D

4 0
3 years ago
F(x) = 4x + p<br> g(x) = px+1<br> Fg(x) = 12x+ q <br> Find the value of p and q
nirvana33 [79]
Answer:
p= 3
q= 7
Hope this helps :)
5 0
2 years ago
3. Adult train tickets cost $25, student tickets costs $15 and child tickets cost $10. If a group of a
Hunter-Best [27]

Step-by-step explanation:

Total Cost = 25a + 15b + 10c

8 0
3 years ago
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