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
Sauron [17]
3 years ago
15

PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!! Only need 4b and 4c

Mathematics
1 answer:
JulsSmile [24]3 years ago
6 0

ANSWER:

b) No

c) Yes

EXPLANATION:

3 (x+1)=3x+3

b)

3 (-8 + 1) = 3 x -8 + 3

(3 x -8) (3 x +1) = 3 x -8 + 3     (just put left and right sides into calcu separately)

-72 = -21

Both sides are not equal and therefore it isn't a solution.

c)

3 (0.5 + 1) = 3 x 0.5 + 3

(3 x 0.5) (3 x +1) = 3 x 0.5 + 3

4.5 = 4.5

Both sides are equal and thereofre it IS a solution.

You might be interested in
I've been workin and workin and kept on gettin 21...but the answer key says 27. If yea could help and explain this I'd surely lo
lilavasa [31]

q/3 - 3 =6

add 3 to each side

q/3 = 9

multiply both sides by 3

q = 9 *3 = 27

7 0
3 years ago
6) The sum of nine and half a number is thirty-three.
qaws [65]

Answer:

Hey there!

9+x/2=33

x/2=24

x=48

The number is 48

Let me know if this helps :)

8 0
3 years ago
3. Si al doble de un número se le resta su mitad resulta 30. ¿Cuál es el número? Plantear ecuación y resolverla
guajiro [1.7K]

Respuesta:

2x - 0.5x = 30

x = 20

Explicación paso a paso:

Llamemos "x" a la incógnita, el número desconocido.

Cuando nos referimos al doble de un número, es lo mismo que 2x.

Cuando nos referimos a la mitad de un número, es lo mismo que 0.5 x.

Consideremos que al doble de un número (2x) se le resta su mitad 0.5x) y se obtiene 30. La ecuación resultante es:

2x - 0.5x = 30

1.5x = 30

x = 30/1.5 = 20

8 0
3 years ago
Carey earns $9.75 working part time on weekends. The table below shows the amount, a, Carey earns for working h hours.
shutvik [7]
$29.25 in 3 hours. explanation: if he makes $9.75 in 1 hour then 9.75 x 3 (hours) would equal $29.25
7 0
3 years ago
Fully explain why an inefficient resource allocation leads an economy to produce at a point inside its production possibilities
Stella [2.4K]
Production possibilities frontier, PPF, is defined as a representation of the point at which a country’s economy is most efficiently producing its goods and services. Efficient production means allocating its resources in the best way possible.
<span>
The points in the PPF shifts outward. The more efficient production is the more the PPF shifts outward. With this in mind, any point found inside the PPF means that there is inefficient resource allocation. If the PPF shifts inward, it means that the efficiency production is regressing and available resources are not fully used to its potential which will lead to a downward turn of the economy. 


</span>
6 0
3 years ago
Other questions:
  • PLZ HELP!
    8·1 answer
  • How do you rename 170,000
    7·1 answer
  • PLS HELP ME ASAP GUYS!! THANK U SM!! HELP! Thank u!!
    12·1 answer
  • What do you call an emergency relief in antarctica
    9·2 answers
  • Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzz...
    6·1 answer
  • Find the measure of the missing angle
    9·2 answers
  • Which of the following is most likely the next step in the series?<br> B
    15·2 answers
  • In 15 minutes, Beth plays 5 songs on her saxophone. What is the UNIT RATE? (How many minutes for 1 song?)
    10·1 answer
  • 7,4,5,2x,11, is 15 find the value of x​
    8·1 answer
  • (05.02)The area of the parallelogram below is ___ square meters
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!