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
Reptile [31]
3 years ago
12

Simplify each expression.

Mathematics
1 answer:
MrRa [10]3 years ago
6 0
1)B -26-27x
steps :distribute ,-9 times 3 =-27 , -9 times 3x = -27x , now combine like terms :you have a 1 and a -27 ,1-27=-26,and you left with -27



2)D 11-49x
steps :distribute , positive 7 times 1= 7 and then positive 7 times negative 7x =-49, now combine like terms ,since you have a positive 4 combine it with positive 7 which is 11 and finally put it together with -49x which it would look like 11-49x
You might be interested in
Solve the system by elimination 1: x+5y-4z=-10, 2x-y+5z=-9, 2x-10y-5z=0 .. . 2. Solve the system by substitution: 2x-y+z=-4, z=5
Kryger [21]
1 )
1st and 2nd equation (multiply 1st by -2 ):
-2x - 10 y + 8 z = 20
2 x -  y    + 5 z = -9
---------------------------
       - 11 y + 13 z = 11  /  * ( -20 )
1st and 3rd:
- 2 x - 10 y + 8 z = 20
   2 x - 10 y - 5 z = 0
-----------------------------
         - 20 x + 3 z = 20  /  * 11
        ----------------------------------
         220 y - 260 z = -220
        - 220 y + 33 z = 220
        ------------------------------
                       z = 0,      y = -1,        x = - 5
2 )  
       2 x - y + 5 = -4
       - 2 x + 3 y - 5 = - 10
       Substitution: y = 2 x + 9
       - 2 x + 3(2 x + 9 ) = -5
        4 x = - 32,          x = -8,    y = -7,   z = 5
3 )
      x + y + z = 11
   1.5 x+3 y +1.5 z = 21
      x = 2 y
   ------------------------
      3 y + z = 11  / * (-2)
      6 y + 1.5 z = 21
    ------------------------
     - 6 y - 2 z = -22
       6 y + 1.5 z = 21
      ------------------------
                 -0.5 z = -1,           z = 2,   y = 3,   z = 6
Answer: the store used 6 pounds of peanuts, 3 pounds of almonds and 2 pounds of raisins. 
           
8 0
4 years ago
Marine biologists are concerned that pollution from a nearby factory has affected the health of local sea urchins. Which of the
Ivanshal [37]

Answer:

its C. all of the sea urchin in the entire ovean is the most likely to be the population of interest

8 0
3 years ago
Which angle is a corresponding angle to 8?
marta [7]

Answer:

angle 1 (the last option)

Step-by-step explanation:

hope this helps!

3 0
3 years ago
77 million to 200.2 million
Aleonysh [2.5K]
200.2 million?????????
6 0
3 years ago
Mrs. Salome charged php. 3,655.00 worth of groceries on her credit card. The balance of her credit card after she made a payment
e-lub [12.9K]
I don’t know what the question is? If you’re looking for the amount she paid, the answer is Php 1,205.00.


Php 3,655.00
- 2,450.00
—————————
Php 1, 205.00
7 0
3 years ago
Other questions:
  • What is the derivative of Sec^2(3x)
    6·1 answer
  • Which of the following is the length of BC given that figure ABCD is a parallogram?
    9·1 answer
  • you have 20 dollars and you would like to purchase a sweater that is on sale for 35 percent off the original price of the sweate
    5·1 answer
  • What is the volume of the triangular prism?<br>A)24 cm<br>B)72 cm<br>C)144 cm<br>D)288 cm​
    13·1 answer
  • The dot plots represent the number of students who enrolled each year for the AP psychology course at two schools. The data repr
    8·1 answer
  • Simplify 9 + 3 × 2 <br><br> a.15<br> b. 21<br> c.24<br> d.48
    9·1 answer
  • Reallllllllyyyy neeeeeeeeeeeddd help
    5·2 answers
  • Help me please my math didn’t teach me this!
    10·1 answer
  • What is the answer<br> 3x-4=2x+1
    12·2 answers
  • I went to the movies and bought 4 tickets. It cost me 23 dollars for the tickets after I applied my 5 dollar Tuesday discount. C
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!