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
Furkat [3]
3 years ago
7

The lines represented by the equations 25y- 20x=100 and 5y - 4x = 20 are

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
3 0

Answer:

The system of equations represent the same line ⇒ B

Step-by-step explanation:

In the system of equations ax + by = c and dx + ey = f, if

  • a = d, b = e, and c = f, then the system of the equations represent the same line
  • a = d, b = e, and c ≠ f, then the system of the equations represent two parallel lines
  • a ≠ d, and/or b ≠ e, and/or c ≠ f, then the system of the equations represent two intersecting lines

∵ The one line represented by the equation 25y - 20x = 100

→ Divide the terms of the equation by 5 to simplify it

∴ 5y - 4x = 20 ⇒ (1)

∴ a = 5, b = -4, c = 20

∵ The other line represented by the equation 5y - 4x = 20 ⇒ (2)

∴ d = 5, e = -4, f = 20

→ Compare the two equations

∵ a = d, b = e, c = f

→ By using the 1st case above

∴ The system of equations represent the same line

You might be interested in
Grant thinks he has reached the point where he has maximized his profit. However, because this can be tricky to determine, he is
Mashcka [7]

Answer:c

Step-by-step explanation:

Profit maximization happens with marginal revenue is equal to marginal cost, so if Grant's assumption was right before selling the extra unit, when he actually sells the extra unit, this will increase his revenue

That's why the answer is c

Marginal revenue will exceed marginal cost

6 0
3 years ago
Find the value of x in the given right triangle
makvit [3.9K]
The answer is x = 7.34
4 0
3 years ago
Zero and negative exponentswrite in simplest for without zero or negative exponents- 17 ⁰
Valentin [98]
-17^0=(-17)^0=1\begin{gathered} (-2)^2\times(-2)^{-5}=(-2)^{2-5} \\ =(-2)^{-3} \\ =\frac{1}{(-2)^3} \\ =\frac{1}{-8} \end{gathered}

Thus, the final answers are 1 and -1/8.

4 0
1 year ago
A taxable item cost $48. The sales tax rate is 8%. What will be the amount of tax on the item
aniked [119]
PLEASE HELP FAST!!! ILL MARK B.

8 0
3 years ago
Allie already owns 33 necklaces, and additional necklaces are priced at 1 for a dollar. How much money does Allie need to spend
ziro4ka [17]

Answer:

75-33=42

Step-by-step explanation:

total (75) minus what she already owns (33) leaves you with how much she still needs since they're each a dollar

6 0
3 years ago
Other questions:
  • Kim walks 347 mile in 3/10 of an hour what is her speed in miles per hour
    15·1 answer
  • Diane and Fran live in Warren, which is 108.7 miles away from the mall. If the average mileage of the car is 25.6 mpg, what is t
    14·1 answer
  • On each of n plates there are k apples and m pears. What is the total number of fruit are there on these plates?
    8·1 answer
  • Please Help!!!
    13·1 answer
  • HELP PLEASE!!
    8·1 answer
  • 2,783 the value of 2 is time
    7·1 answer
  • PLEASE I NEED THE ANSWER ASAP
    10·1 answer
  • Strat time 3:30 pm end time 7:00 pm what is the elapsed time.
    13·2 answers
  • 2. Brian thinks that 1.75 x 10-3 is less than 1.25 10-2. Is he correct? Justify your answer.
    11·1 answer
  • the pathway of sams dive into the swimming pool can be represented by the equation h=-16t²+15t+12 (where t=time in seconds and h
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!