A union charges monthly dues of $3.00 plus $0.15 for each hour worked during the month. A union member's dues for March were $30.00. How many hours did the union member work during the month of March?

Answer 1

If we let x represent the number of hours worked and then multiply this number by 0.15 , we can write:

$0.15x

If we add the $3.00 monthly fee, then 0.15x+ 3.00 =$30.00

We can solve this equation for x using inverse operations:

0.15x + 3.00 - 3.00 = 30.00 - 3.00

0.15x = 27.00

0.15x /0.15= 27.00/0.15

x = 180 hours worked