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
Gnesinka [82]
2 years ago
14

Celia simplified the expression Negative 4 x (1 minus 3) minus (2 x + 2). She checked her work by letting x = 5 in both expressi

ons. Her work for the original expression is shown below.
Negative 4 x (1 minus 3) minus (2 x + 2) = negative 4 (5) (1 minus 3) minus (2 (5) + 2) = negative 20 (negative 2) minus 12 = 40 minus 12 = 28.


Celia knows that the simplified expression should also equal 28 when x = 5. Which shows Celia’s simpllifed expression?
Mathematics
1 answer:
notsponge [240]2 years ago
8 0

Answer:

-4x (1-3) - (2x + 2)

-4(5)(1-3) - (2(5) + 2)

-20(1-3) - (10 + 2)

-20(-2) - (12)

40 - (12)

28

Step-by-step explanation:

You might be interested in
A college student completed some courses worth 3 credits and some courses worth 4 credits. The student earned a total of 59 cred
DedPeter [7]

Answer:

They completed 13, 3 credit classes

Step-by-step explanation:

1. Make 2 formulas. In this case: x+y=18

and 3x+4y=59

2. Then multiply x+y=18 by 3 and subtract the two equations.

Find y which is 5 and input into the equations. Then find your answer.

5 0
3 years ago
1. 0.2/0.40<br>2. 0.02 0.40<br>3. 0.3/0.60<br>4. 1.2/ 0.60<br>5. 0.2/0.40​
siniylev [52]

Step-by-step explanation:

1. 0.2/0.40=0.5

2. 0.02/0.40=0.05

3. 0.3/0.60=0.5

4. 1.2/0.60=2

5. 0.2/0.40=0.5

5 0
3 years ago
Where does the line y = -4x + 9 cross the y-axis?<br> please help
iren2701 [21]

Answer:

y = 9

Step-by-step explanation:

When the line crosses y-axix,  x-co ordinate = 0

y = -4*0 + 9

y = 0 + 9

y = 9

8 0
3 years ago
Two side lengths of a triangle measure 8
olasank [31]

Answer:

Correct option is C)

⇒  The sum of the lengths of any two sides in a triangle is always greater than the length of the third side in the triangle.

⇒  The differnce of the lengths of any two sides in a triangle is always lesser than the length of the third side in the triangle.

⇒  The difference between 4cm and 7cm is

3cm and their sum is 11cm.

⇒  To ensure that the above mentioned rule is not violated, the possible length of the third side has got to be greater than 3cm and lesser than 11cm.

⇒  So from the given options 6cm is less than

11cm and greater than 3cm

∴  The length of the third side of triangle is 6cm

Step-by-step explanation:

5 0
1 year ago
6(n + 2) &lt; -72<br> Please help !!
Archy [21]

Answer:

n < -14

Step-by-step explanation:

6 (n+2) < -72

6n + 12 < -72

6n < -72 - 12

6n < -84

n < -84/6

n < -14

3 0
3 years ago
Other questions:
  • Two whole numbers A and B satisfy the following conditions. Find A and B . A + B = 44. A : B is equivalent to 4 : 7
    6·1 answer
  • Len walks 3/10 mile in the morning. He walks 2/5 mile in the afternoon to a friends house. Len says that he walks a total of 5/1
    13·1 answer
  • A sample of size =n72 is drawn from a population whose standard deviation is =σ25. Part 1 of 2 (a) Find the margin of error for
    5·1 answer
  • 4/7+1/7 in simplest form
    9·1 answer
  • 9x -7 = -7 show your work
    5·2 answers
  • 2m·4b−3a·2n−0.2b·5m+n·5a−5bm+8an
    7·1 answer
  • A (-5,3) <br> B (3,-3) <br> what is the distance of AB <br><br> do not label your answers
    15·1 answer
  • Find the value of a and b so that the pair of values (2, -3) is a solution of the system
    9·2 answers
  • Find the surface area of the prism.
    12·1 answer
  • Three friends went apple picking and then counted the apples they picked.Who had the largest red to green apple ratio? Use compl
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!