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
Sonja [21]
3 years ago
5

Solve for x 4(5x-20)=-20

Mathematics
1 answer:
dybincka [34]3 years ago
5 0
20x-80=-20
-80 -80
20x= -100
/20 /20
x=-5
You might be interested in
Question 8b , thanks
marta [7]

Answer:

Step-by-step explanation:

a = \frac{2b+1}{3b-1}

b = 2/3

2b + 1 = 2*\frac{2}{3}+1\\\\=\frac{4}{3}+1\\\\=\frac{4}{3}+\frac{3}{3}\\\\=\frac{7}{3}\\\\3b-1 = 3*\frac{2}{3}-1\\\\=2- 1 = 1\\\\\\

a = \frac{2b+1}{3b-1}\\\\a=\frac{\frac{7}{3}}{1}\\\\=\frac{7}{3}\\\\

a = 7/3

b)

\frac{2b+1}{3b-1}=a\\\\

Cross multiply,

2b + 1 = a*(3b - 1)

2b + 1 = a*3b - 3*a

2b + 1 = 3ab- 3a

2b = 3ab - 3a - 1

2b - 3ab = -3a  - 1

b(2 - 3a) = -3a - 1

b =\frac{-3a - 1}{2 - 3a}

3 0
3 years ago
Plz help!............
prisoha [69]

Answer:

C

Step-by-step explanation:

B/c 0 is included in the range since it the origin of the graph and it then goes to negative infinity. This is why y has to be less than equal to 0 which means 0 is included and graph goes to negative infinity.

7 0
3 years ago
Read 2 more answers
What is the solution to the system of equations below?
ANEK [815]
A. x = 7, y = 4, z = 3

How?

Just plug in the numbers.

7 + 4 + 3 = 14

11 + 3 = 14

14 = 14

Next.

4 + 3 = 7

Next.

3 = 3

5 0
3 years ago
Chang gets paid a $50 bonus for every 100 pairs of shoes that he sells. Chang is being reinforced on a ________ schedule of rein
maksim [4K]
Tell him to stop buying shoes, you wouldnt have this questions.

that would be 1/2 :P

4 0
3 years ago
Read 2 more answers
Which of the following represents the equation of the line passing through (-4,5)
Sergio [31]

Answer:

Answer: y=2x+13.

Step-by-step explanation:

Your input: find the equation of the line perpendicular to the line y=5/2−x/2 passing through the point (−4,5).

The equation of the line in the slope-intercept form is y=5/2−x/2.

The slope of the perpendicular line is negative inverse: m=2.

So, the equation of the perpendicular line is y=2x+a.

To find a, we use the fact that the line should pass through the given point: 5=(2)⋅(−4)+a.

Thus, a=13.

Therefore, the equation of the line is y=2x+13.

Answer: y=2x+13.

5 0
3 years ago
Other questions:
  • I'm so confused about this question for homework . Could you help me? The glee club has 120 cupcakes to sell. They have decided
    14·1 answer
  • Given 2x+7=27 and 3x+1=28, does 2x+7=3x+1? Explain
    6·2 answers
  • What is the answer to 42−{(7+14)÷7}×4 Please help
    6·1 answer
  • What is the volume of the cylinder below? Use 3.14 for pi and I round to the nearest tenth
    9·1 answer
  • A company that makes trail mix uses 138
    13·1 answer
  • -4-(3+6²)÷13-1²•(-12)=
    8·1 answer
  • 6 and 2/3 divided by 1/5 pls help
    15·2 answers
  • Find the value of X on this proportion
    10·2 answers
  • Surface area 20 points
    9·1 answer
  • If f(x) = 3(x+5) +-, what is f(a+2)?<br> xx, (a?<br> X
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!