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
Anestetic [448]
3 years ago
10

Please help I really don’t understand anything at all !

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

1

2(3x + 1) = 4(x + 2) ← distribute parenthesis on both sides

6x + 2 = 4x + 8 ( subtract 4x from both sides )

2x + 2 = 8 ( subtract 2 from both sides )

2x = 6 ( divide both sides by 2 )

x = 3

------------------------------------------------------------

2

6x = 4(x - 3) ← distribute parenthesis

6x = 4x - 12 ( subtract 4x from both sides )

2x = - 12 ( divide both sides by 2 )

x = - 6

-----------------------------------------------------------

3

2(4x + 7) = 4x + 30 ← distribute parenthesis on left side

8x + 14 = 4x + 30 (subtract 4x from both sides )

4x + 14 = 30 ( subtract 14 from both sides )

4x = 16 ( divide both sides by 4 )

x = 4

---------------------------------------------------------------------

4

50 = - (y + 22) ← distribute parenthesis by - 1

50 = - y - 22 ( add 22 to both sides )

72 = - y ( multiply both sides by - 1 )

- 72 = y , that is

y = - 72

You might be interested in
the school theater made $2,142 on ticket sales for the three nights of their play. the department sold the same number of ticket
mihalych1998 [28]
The theater department sold 102 tickets each night,because 2142÷ 3 nights = 714. 714 ÷ 7=102
7 0
3 years ago
Read 2 more answers
Find the slope of the line passing through each of the following pairs of points (0,7), (0,-8)
Sedaia [141]

Answer:

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find an equation for the line perpendicular to y = − 1 /9 x + 4 with x-intercept at x = -1
prisoha [69]
Y = (-1/9).x + 4
The slope m of the line perpendicular to y = (-1/9).x + 4 is equal to 9:
(if the product of 2 slopes = - 1, then the 2 lines are perpendicular)

y = 9x + b, Since it passes by the point (-1,0) , then:
 0= 9(-1) + b and b = 9
Final equation:

y = 9x+9
 
6 0
3 years ago
Use the ruler to measure the length of the colored pencils, then select the line plot that best represents this data set.
Marta_Voda [28]
Its the last line plot

4 0
3 years ago
Read 2 more answers
I need help simplifying this problem:
Aliun [14]
C(t)= -0.3t^2 + 7.2t - 3.2

12c = 40
6 0
3 years ago
Other questions:
  • Linear equations. write the standard form of an equation of the
    11·1 answer
  • 1.5×10 to the negative sixth
    15·1 answer
  • The table represents a function. A 2-column table with 5 rows. The first column is labeled x with entries negative 6, 7, 4, 3, n
    5·1 answer
  • The difference of v and 16
    14·1 answer
  • Evaluate 13+6/y when y=6
    10·1 answer
  • Operaciones con numeros reales suma ejemplos
    10·2 answers
  • On wednesday 72% of the customers who bought gas at a gas station mad additional purchases. There were 250 customers who bought
    9·1 answer
  • **answer fast pls**
    15·2 answers
  • Evaluate f(x) = x + 8 when x = -3, 0, and 5.
    7·1 answer
  • 11. Name a pair of complementary angles in this figure.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!