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14 October, 06:05

Northdale Productions put on a show

that 405 people attended. They made

$3,950. They charged $12 for every adult

and $5 for every child. How many adults (a)

and how many children (c) attended?

a+c=405

12a+5c=$3,950

[?] adults [] children

+1
Answers (2)
  1. 14 October, 06:25
    0
    Answer: 325 adults 10 kids

    Step-by-step explanation:

    If you multiply 325 by 12 you get $3,900, 10 times 5 is equal to 50. 3,900 plus 50 is equal to 3,950

    Edit: jk I'm wrong I didn't see that there were 405 ppl
  2. 14 October, 06:32
    0
    Answer: 275 adults, 130 children

    Step-by-step explanation:

    a+c=405

    12a+5c=$3,950

    Using elimination lets multiply all terms in a+c=405 by - 5 to get

    -5a-5c=-2025

    then, combining the two equations we get 7a=3950-2025

    7a=19225

    a=275

    405-275=130

    c=130
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