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My name is Ann [436]
3 years ago
7

You and your friend are selling tickets to a charity event. You sell 9 adult tickets and 13 student tickets for $212. Your frien

d sells 4 adult tickets and 15 student tickets for $168. What is the cost of a student ticket?
$__
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
6 0

Answer:

8$ a ticket

Step-by-step explanation:

X=adult tickets

Y=student tickets

(9x+13y=212)*4= 36x+52y=848

(4X+15y=168)*9= 36x+135y=1512

subtract both equations  -83y=-664

divide by -83   y=8

student tickets cost $8

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Distributive Property

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Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

f(x) = 1 - x²

<u>Step 2: Evaluate</u>

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  4. Combine like terms:                                                                                          f(2x + 4) = -4x² -16x - 15
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