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
lisov135 [29]
3 years ago
13

Arlene sells computers and tablets, She earns an

Mathematics
1 answer:
maria [59]3 years ago
6 0

Answer:

Sorry i dont know the answer

You might be interested in
One side of a triangle is 3 times the second side. The third side is 17 feet longer than the second side. The perimeter of a
Nadya [2.5K]

Answer:

Step-by-step explanation:

lets have one side =a

P=3a+a+(17+a)=52

P=5a+17=52

5a=52-17

5a=35

a=7

second side=21

third side=24

3 0
3 years ago
Sandy has 31 books in her library. She bought several books at a yard sale over the weekend. She now has 59 books in her library
Tatiana [17]
28 books. 59(current books) - 31(past books) equals the amount of books Sandy bought, which is 28 books. Hope it helped
8 0
3 years ago
The augmented matrix of a system of equations has been transformed to an equivalent matrix in​ row-echelon form. Using​ x, y
jenyasd209 [6]

Answer: The system of equations is:

x + 2y + 2 = 4

y - 3z = 9

z = - 2

The solution is: x = -22; y = 15; z = -2;

Step-by-step explanation: ONe way of solving a system of equations is using the Gauss-Jordan Elimination.

The method consists in transforming the system into an augmented matrix, which is writing the system in form of a matrix and then into a <u>Row</u> <u>Echelon</u> <u>Form,</u> which satisfies the following conditions:

  • There is a row of all zeros at the bottom of the matrix;
  • The first non-zero element of any row is 1, which called leading role;
  • The leading row of the first row is to the right of the leading role of the previous row;

For this question, the matrix is a Row Echelon Form and is written as:

\left[\begin{array}{ccc}1&2&2\\0&1&3\\0&0&1\end{array}\right]\left[\begin{array}{ccc}4\\9\\-2\end{array}\right]

or in system form:

x + 2y + 2z = 4

       y + 3z = 9

               z = -2

Now, to determine the variables:

z = -2

y + 3(-2) = 9

y = 15

x + 30 - 4 = 4

x = - 22

The solution is (-22,15,-2).

4 0
3 years ago
SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!
pav-90 [236]

Answer:

-3f - 10

Step-by-step explanation:

-1 times 10 = -10

-1f times 3f = -3f

Sorry if this isn't right.

4 0
3 years ago
Read 2 more answers
If you are facing north. Turn 90 degrees left. Turn 180 degrees right. Reverse direction. Turn 45 degrees left. Reverse directio
ololo11 [35]
Northeast. Im not 100% sure though,,,,
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the midpoint of the segment shown below? (-4,6) (4,-2)
    6·2 answers
  • NEED HELP ASAP PLEASE
    13·1 answer
  • What is the numerator when 0.83 is written as a fraction with the denominator of 100
    11·2 answers
  • An engineer on the ground is looking at the top of a building. The angle of elevation to the top of the building is 22°. The eng
    6·1 answer
  • List the coordinates of the image after a rotation of the figure below of 180° about the origin. ( a0, a1) ( a2, a3) ( a4, a5) (
    5·2 answers
  • Part A
    11·1 answer
  • Find the missing side lengths.<br> Can someone help?
    5·1 answer
  • Pls answer asap and correctly
    8·1 answer
  • A candy factory produces 7 candies a day. How many candies will the factory produce in 100 days ​
    6·2 answers
  • A company mixes pecans, cashews, peanuts, and walnuts to make a batch of mixed nuts.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!