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
Mrac [35]
3 years ago
8

Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices.

Mathematics
1 answer:
LiRa [457]3 years ago
5 0
3x - y = 0 . . . (1)
5x + 2y = 22 . . . (2)

From (1), y = 3x . . . (3)

Putting (3) into (2) gives:
5x + 2(3x) = 22
5x + 6x = 22
11x = 22
x = 2

From (3), y = 3(11) = 33

x = 11, y = 33.
You might be interested in
The computer store pays its employees $150 per day plus a commission of 15% of their sales. Teagan wants to make at least $450 t
Savatey [412]

The equation 0.15 x + 150 ≥ 450 will help Teagan determine how much he has to sell today ⇒ A

Step-by-step explanation:

The given is:

  • The computer store pays its employees $150 per day plus a commission of 15% of their sales
  • Teagan wants to make at least $450 today

We need to find which equation will help Teagan to determine how much he has to sell today

Assume that he has to sell by $x today

∵ The store pays $150 per day plus a commission of 15%

   of their sales

∵ Teagan's total sales = x

- Multiply 15% by x, then add the product by 150

∴ Teagan makes = 15% × x + 150

∵ 15% × x = \frac{15}{100} × x = 0.15 x

∴ Teagan makes = 0.15 x + 150

∵ Teagan wants to make at least $450 today

- At least means ≥

∴ Teagan makes ≥ 450

- Substitute Teagan makes by 0.15 x + 150

∴ 0.15 x + 150 ≥ 450

The equation 0.15 x + 150 ≥ 450 will help Teagan determine how much he has to sell today

Learn more:

You can learn more about the linear inequality in brainly.com/question/6703816

#LearnwithBrainly

6 0
4 years ago
Read 2 more answers
It is a linear equation but i don't know how to set the equation up , need help​
ryzh [129]

Step-by-step explanation:

x = number of novels

y = number of dictionaries

x = 8y

88x + 208y = 13680

now, using the identity of the first equation in the second equation gives us

88(8y) + 208y = 13680

704y + 208y = 13680

912y = 13680

y = 13680/912 = 15

x = 8y = 8×15 = 120

so, there were 120 novels and 15 dictionaries sold.

7 0
2 years ago
6x²-13x=-6<br> Solve the equation using the quadratic formula
nalin [4]

Answer:

x=2/3, x=3/2

Step-by-step explanation:

6x^2-13x=-6

6x^2-13x+6=0

6x^2-4x-9x+6=0

2x*(3x-2)-3(3x-2)=0

(3x-2)8(2x-3)=0

3x-2=0

2x-3=0

x=2/3

x=3/2

6 0
3 years ago
Please help me on this question
Leya [2.2K]

Answer:

the things wont load whats the question?

Step-by-step explanation:

5 0
3 years ago
Can someone please help I appreciate it
kompoz [17]

Answer:

answer =6

Step-by-step explanation:

mark me as brainliest

5 0
4 years ago
Read 2 more answers
Other questions:
  • There are 9 books eack book 3/4 of a pound which is the total weight of the books?
    5·1 answer
  • For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusiv
    7·1 answer
  • Study the proof given.
    13·1 answer
  • What is the answer for it ?
    10·1 answer
  • Really need help finding the answer
    11·1 answer
  • A punch recipe that serves 24 people calls for 4 liters of lemon soda, 2 pints of sherbert, and 6 cups of ice. How much of each
    9·1 answer
  • A, B &amp; C form a triangle where Z BAC = 90°.
    13·1 answer
  • What is the value of X? <br><br><br> A. 5 <br><br> B. 2.5<br><br> C. 7.5<br><br> D. 10
    12·1 answer
  • HELP PLS PLS PLS PLS PLS z
    5·1 answer
  • What is the exponential form of the expanded form below? Giving 100 points answer quickly please!,!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!