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
Andrej [43]
2 years ago
11

Which graphs are proportional?

Mathematics
2 answers:
Komok [63]2 years ago
6 0

Answer:

Its C because it passes through the origin. I learned about this.

Mama L [17]2 years ago
4 0
Answer: C
Explanation: A proportional graph has a straight line that comes straight out of the origin (0) this is why D. cant be correct. A. Is not a straight line same with D.
You might be interested in
PLEASE HELP!!!!<br> I need to solve for a, b, and c
nirvana33 [79]

Answer:

  • 25000 seats in section A
  • 14100 seats in sectin B
  • 10900 seats in section C

Step-by-step explanation:

The problem statement tells you half the total number of seats are in section A, so you already know that there are 25000 A seats. The revenue from those seats is

... 25000×$25 = $625,000

so the revenue from B and C seats must total

... $1,070,500 - 625,000 = $445,500

If all 25000 of the B/C seats were C seats, the revenue would be

... 25000×$15 = $375,000

The actual revenue from those seats is $445,500 -375,000 = $70,500 more than that. We know each B seat generates $5 more revenue, so there must be ...

... $70,500/$5 = 14,100 . . . . B seats

Then the balance of the 25000 B and C seats are C seats:

... 25,000 - 14,100 = 10,900 . . . . C seats

_____

<em>Alternate Solution Method</em>

The new Brainly answer format requires the answer be supplied before the working. In order to find the answer quickly so that I can fill in that section, I used a matrix method for solving the problem. The problem equations can be written ...

  • a + b + c = 50000
  • a - b - c = 0
  • 25a + 20b + 15c = 1070500

so the augmented matrix is ...

\left[\begin{array}{cccc}1&1&1&50000\\1&-1&-1&0\\25&20&15&1070500\end{array}\right]

A graphing calculator can be used to find the solution to this, generally using a function that produces the reduced row-echelon form. The attachment shows the solution using a TI-84 calculator.

___

<em>Comment on the Working</em>

Since the number of A seats is equal to the total of B and C seats, the number of A seats must be half the total number of stadium seats. Having figured that out, the problem is reduced to one of finding the mix of B and C seats that will produce the remaining revenue.

As with many mixture problems, it is convenient to look at differences. Start with the assumption that all of the desired revenue comes from the least contributor. Here, that is C seats. Then figure the difference that using a B seat makes ($20 -15 = $5) and the difference of the actual revenue and the amount that you got by assuming all C seats: 445,500 -375,000 = 70,500. Since replacing a C seat by a B seat adds $5 to the revenue, it is easy to figure the number of such replacements required in order to raise the revenue by $70,500.

If you write the equation for B seats, you find the solution to the equation mirrors this verbal description:

... 20b + 15(25000-b) = 445,500

... 5b = 445,500 - 375000 . . . . simplify, subtract 375000

... b = 70500/5 = 14100

8 0
2 years ago
Pls help!!!! ...!.!.!.!.!.!.!.!.!!.
Nina [5.8K]
If you multiply 2x2 you get 4 and multiply another 2 which is 8. Two answers are 8 and 2x2x2.
7 0
3 years ago
Read 2 more answers
Find the rate of change
Bezzdna [24]

Answer: 40 mi/h

Step-by-step explanation:

it goes up 80 and over 2, so the rate of change is 80/2 = 40 mi/h

8 0
2 years ago
The length of line segment AG is 17 m and the line segment AD is 25 m. What is the length of line segment GD?​
vladimir1956 [14]

Answer:

AG = 17 m

AD = 25 m

GD = ?

AD = AG + GD

GD = AD - AG

= 25 - 17

= 8 m

7 0
2 years ago
Read 2 more answers
Solve the any quality then identify the graph the solution -3x-3&lt;6
Tanzania [10]

Answer:

Step-by-step explanation:

-3X-3<6

-3X<9

X>-3    (NOTICE THE SIGN CHANGE BECAUSE WE DIVIDED BY A NEGATIVE NUMBER)

(-3,00) INTERVAL NOTATION

7 0
3 years ago
Read 2 more answers
Other questions:
  • CAN SOMEONE PLEASE HELP ME⁉️⁉️⁉️⁉️
    15·1 answer
  • Some number is tripled and then cut in half.The result is increased by 5, and is equal to 20
    6·1 answer
  • The mean cost of a five pound bag of shrimp is 50 dollars with a variance of 64. If a sample of 43 bags of shrimp is randomly se
    13·1 answer
  • A rectangular prism has a length of 5 cm, a width of 2 1/2 cm, and a expressions height of 1 1/2 cm. Which can be used to find t
    13·2 answers
  • Find two consecutive whole numbers that square root113 lies between.
    5·1 answer
  • M= 2n - 2 <br> solve for n
    8·1 answer
  • Gia collected data on the weights, in ounces, of five newborn puppies. The weights are shown in the list below.
    9·1 answer
  • What do the following two equations represent?
    14·1 answer
  • PLEASE HELP ME THANKS IF u do
    12·1 answer
  • 318 divided by 16 what is the answer
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!