Respuesta :
Answer:
Step-by-step explanation:
Determine the types of tickets involved.
There are student tickets and adult tickets.
Create a table to organize the information.
Type Â
Number
 Â
Value ($)
 Â
Total Value ($)
Â
Student  Â
6
Â
Adult  Â
9
Â
1
,
506
Â
Step 2. Identify what you are looking for.
We are looking for the number of student and adult tickets.
Step 3. Name. Represent the number of each type of ticket using variables.
We know the number of adult tickets sold was Â
5
 less than three times the number of student tickets sold.
Let Â
s
 be the number of student tickets.
Then Â
3
s
−
5
 is the number of adult tickets.
Multiply the number times the value to get the total value of each type of ticket.
Type Â
Number
 Â
Value ($)
 Â
Total Value ($)
Â
Student Â
s
 Â
6
 Â
6
s
Â
Adult Â
3
s
−
5
 Â
9
 Â
9
(
3
s
−
5
)
Â
1
,
506
Â
Step 4. Translate: Write the equation by adding the total values of each type of ticket.
6
s
+
9
(
3
s
−
5
)
=
1506
Â
Step 5. Solve the equation.
6
s
+
27
s
−
45
=
1506
33
s
−
45
=
1506
33
s
=
1551
s
=
47
students
Â
Substitute to find the number of adults.
3
s
−
5
=
 number of adults
3
(
47
)
−
5
=
136
 adults
Step 6. Check. There were Â
47
 student tickets at Â
$6
 each and Â
136
 adult tickets at Â
$9
 each. Is the total value Â
$1506
?
 We find the total value of each type of ticket by multiplying the number of tickets times its value; we then add to get the total value of all the tickets sold.
47
â‹…
6
=
282
136
â‹…
9
=
1224
_____
Â
1506
✓
Â
Step 7. Answer the question. They sold Â
47
 student tickets and Â
136
 adult tickets.