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
anastassius [24]
2 years ago
10

At a deli counter,

Mathematics
1 answer:
Arisa [49]2 years ago
8 0

Answer:

Step-by-step explanation:

You might be interested in
Question 1 (5 points): Consider the system of linear equations x1 − 4x2 − x4 = −7 x2 − 2x4 = 3 x4 + 2x5 = 3 (a) Write down the c
Alika [10]

Answer:

Step-by-step explanation:

Given is a system of equations as

x1-4x2 - x4 = -7\\ \\x2 - 2x4 = 3 \\\\x4 + 2x5 = 3

We have 5 variables and 3 equations

a) coefficient matrix of this system is

1   -4   0   -1   0\\

0    1   0   -2   0\\

0    0   0    1    2\\

We find that x3 has no coefficient in any of the equations so we can omit x3 and write as equations for 4 variables as

1   -4     -1   0\\

0    1     -2   0\\

0    0     1    2\\

b) Augmented matrix is

1   -4     -1   0\\  7

0    1     -2   0\\ 3

0    0     1    2\\3

c) For row operations to ehelon form

we can do R1+4R2 = R1

We get

1   0   -9  0 \\  19

0   1  -2   0 \\   3

0   0   1   2  \\   3

Now let us do R1 = R1+9R3 and R2 = R2+2R3

1  0   0   0  \\ 46

0  1   0   0   \\  9

0   0  1   2   \\  3

d) We find that there are infinite solutions to  the system in parametric form, since x4 and x5 are linked with only one equation

e) x1 = 46, x2 = 9, x4+2x5 =3

Or x1 =46, x2 =9, x4 = 3-2x5, x5 = x5 is the parametric solution

 

8 0
3 years ago
X2-(2x+3)<br><br> Elimina los signos de agrupación
Amiraneli [1.4K]
You first used pemdas so that will be 6x times -2 it should be -18
7 0
3 years ago
Solve for x in the literal equation -5=xy +z.
Ira Lisetskai [31]

Answer:

This one is pretty straightforward.

x=-5/yz

7 0
3 years ago
Read 2 more answers
J has a loan of $42,350. This loan has a simple interest rate of 8% per year. What is the amount
Aleksandr-060686 [28]

Answer:

6776

Step-by-step explanation:

8℅ = 0.08

0.08 x 42350 = 3388

3388 x 2 = 6776

4 0
3 years ago
7m+2=6n-5<br> Write a formula for f(m)f(m)f, left parenthesis, m, right parenthesis in terms of mmm.
NeX [460]

Answer: f

(

m

)

=

7

m

6

+

7

6

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • Rico tried to solve an equation step by step.
    8·2 answers
  • Solve the quadratic equation numerically (using tables of x- and y- values).
    8·1 answer
  • Find the measure of the indicated angle
    14·1 answer
  • Find the value of k. The diagram is not to scale.<br> 108<br> 101<br> 72<br> 50
    9·1 answer
  • Can someone help me with this please its due in 5mins
    8·1 answer
  • Jonathan's weight is the difference of Harold's weight and twice the weight of Beth. wrote an equation​
    8·1 answer
  • 1.) Any measure representing the center of a set of data arranged in a decreasing or increasing order of magnitude.
    15·1 answer
  • Quadrilateral ABCD is dilated by a scale factor of 1 over 3 centered around (1, 2).
    5·1 answer
  • What is <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D" id="TexFormula1" title="\frac{d}{dx}" alt="\frac{d}{dx}" align
    7·1 answer
  • The equation C = 20n + 35 represents the relationship between the cost of school volleyball uniforms,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!