If three adults and two children go to the movies, it costs $33.50. if one adult and four children go to the movies, it costs $30.50. what is the cost of one adult movie ticket?

$5.80
$6.40
$7.30

  $7.30

Step-by-step explanation:

The problem statement gives rise to two equations:

If we double the first equation and subtract the second, we have ...

  2(3a +2c) -(1a +4c) = 2(33.50) -(30.50)

  5a = 36.50 . . . . simplify

  a = 7.30 . . . . . . .divide by 5

The cost of one adult ticket is $7.30.

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.