Answer:
15 early tickets were sold and 5 regular tickets were sold.
Step-by-step explanation:
Let x be the number of early bird tickets sold and y be the number of regular tickets sold.
Total number of tickets sold = 20
Thus, we can write the equation,
Cost of early bird ticket = $10
Cost of regular tickets = $15
Total cost = $225
Thus, we can write the equation,
We solve the equation by elimination method by multiplying first equation by 10 and subtracting.
Thus, 15 early tickets were sold and 5 regular tickets were sold.
Answer:
the inverse is f
−
1
(
x
)
=
√
−
x
3
−
1
,
−
√
−
x
3
−
1
Step-by-step explanation:
<span>
Factor inside the radical to reveal a perfect square
extract the square root of 36
</span><span>What is Square root of negative 72
Write it
extract the square root of -1 which is "i"
</span><span>
</span>
Answer:
d = 12
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
d/2 = 6
<u>Step 2: Solve for </u><em><u>d</u></em>
- [Multiplication Property of Equality] Multiply 2 on both sides: d = 12
