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27 July, 03:12

There were 300 people at a dance. tickets cost $5 for visitors and $3 for students. the total tickets sales were $1100. how many visitors and how many students attended the dance?

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Answers (2)
  1. 27 July, 03:34
    0
    Given:

    Number of people = 300

    Ticket cost for visitors = $5 and for students = $3

    Total ticket sales = $1100

    To find: Number of visitors and number of students.

    Solution:

    Let number of students be x and number of visitors be y.

    By above information, we get 2 equations,

    1. x + y = 300

    2. 3x + 5y = 1100

    Now, balancing the equations, multiply equation 1. with 3 and equation 2. with 1

    Now we get 3x + 3y = 900 - equation 3

    and 3x + 5y = 1100 - equation 4

    By subtracting equation 4 from equation 3, we get

    -2y = - 200

    By solving this we get y = 100

    Putting value of y = 100 in equation 1.

    x+100 = 300

    x = 200

    So, number of students = 200 and number of visitors = 100.
  2. 27 July, 03:39
    0
    X-visitor

    y-student

    Total amount of people: x+y=300

    The total tickets sales: $5*x+$3*y=$1100

    x+y=300⇒x=300-y

    5x+3y=1100

    x=300-y

    5 * (300-y) + 3y=1100⇒1500-5y+3y=1100⇒2y=400⇒y=200

    x=300-200=100

    100 visitors and 200 students attended the dance.
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