At the movie theatre, child admission is $5.50 and adult admission is $8.60. On Wednesday, 131 tickets were sold for a total sales of $946.80 . How many adult tickets were sold that day?

  73

Step-by-step explanation:

Let a represent the number of adult tickets sold. Then the total revenue was ...

  8.60a +5.50(131 -a) = 946.80

  8.60a -5.50a +720.50 = 946.80 . . . . eliminate parentheses

  3.10a = 226.30 . . . . . . subtract 720.50, collect terms

  a = 73 . . . . . . . . . . . . . . divide by 3.10

73 adult tickets were sold that day.

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%