Question

Asked Dec 3, 2019

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Linda sold 2 kinds of tickets to her class play. student ticket cost $4 each an adult ticket cost $6.50 each. if Linda sold a total of 21 tickets for $99 how many student tickets did she sell?

Step 1

Given that, the cost of the student’s ticket is $4 and the cost of the adult ticket is $6.50, and she sold 21 tickets.

Let *x* be the number of students tickets and let *y* be the number of adults tickets.

That is, *x*+*y* = 21.

*x* = 21–*y* (1)

The total cost of the tickets is $99.

That is, 4*x*+6.5*y* = 99 (2).

Step 2

Substitute the equation (1) in (2) to...

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