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At a concert, \(1,600in tickets were sold. Adult tickets were \)9each and children’s tickets were $4 each. If the number of adult tickets was 30 less than twice the number of children’s tickets, how many of each kind were sold .

Short Answer

Expert verified

The number of tickets for children were85and140tickets for adults.

Step by step solution

01

Step 1. Given information

Total money of all tickets=$1600

Price of adult ticket=$9

Price of children ticket=$4

02

Step 2. Assumption of variables

Let the number of child ticket be x

Therefore, according to the question,

adult ticket will be2x-30

The total will be price of child ticket 4x

The price of adult ticket will berole="math" localid="1647183683467" 9(2x-30)

03

Step 3. Solution of the equation

Now, we can write the equation as,

4x+9(2x-30)=16004x+18x-270=160022x-270=160022x=1600+270x=85

Therefore,

2x-30=2×85-30=140.

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