You buy37 concert tickets for $8 each and sell them for $11 each.Which is the better way to determine the profit

Question

Profit=  37(11)-(37)8

=407-296=$111 

 

or Profit =37(11)-(37)8=37(11-8)=37(3)=$111

 

Answer 1

The better way to determine the profit:

 

Profit = 37(11) - 37(8)

        = 37(11-8)

        = 37(3)

        = $111

 

This is because 37 being a common factor allows it to be factored out of each expression. This then makes the the required operations simpler. it is easier to subtract two numbers (11-8) and then multiply two numbers, than it is to do two multiplications and followed by another operation. Two operations vs three operations.