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eduard
3 years ago
13

Adults tickets for the school musical sold for $3.50 and students tickets 11. sold for $2.50. Three hundred twenty-one tickets w

ere sold altogether for $937.50. How many of each kind of ticket were sold?
Mathematics
1 answer:
vladimir2022 [97]3 years ago
8 0

Answer:

  • 135 adult tickets
  • 186 student tickets

Step-by-step explanation:

Let x represent the number of adult tickets sold. Then (321-x) is the number of student tickets sold. The total revenue is ...

  3.50x + 2.50(321-x) = 937.50

  x + 802.50 = 937.50 . . . . . eliminate parentheses, collect terms

  x = 135 . . . . . . subtract 802.50; number of adult tickets

  321-x = 186 . . . . number of student tickets

135 adult tickets and 186 student tickets were sold.

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7 0
3 years ago
Number of boys : Number of girls = 11 : 9
Oliga [24]
The first thing we are going to do for this case is define variables.
 We have then:
 x = Number of boys
 y = Number of girls
 We now write the system of equations:
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 x = y + 124
 Solving the system we have:
 x = 682
 y = 558
 The number of students is:
 x + y = 682 + 558 = 1240
 Answer:
 
the total students in the school is:
 
1240 students
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3 years ago
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