Peter and his four brothers combined all of their money to buy a video game. if 30% of the total money is peter's, and $18.00 of the total money is peter's, how much do all five brothers have combined?

The amount of money that  all five brothers have combined is:

                  $ 60

Let the total cost that all the five brothers have combined be: $ x

Also, it is given that Peter contributes 30% of the total money and it constitutes to $ 18.

This means that 30% of total money=18

This means that:

              Hence, the total money is:

                              $ 60

step-by-step explanation: