An employment agency specializing in temporary construction pays heavy equipment operators $129 per day and general laborers $100 per day. if thirty-two people were hired and the payroll was $3751, how many heavy equipment operators were employed? how many laborers?

To solve this problem you must apply the proccedure shown below:

1. Let's call to the number of equipment operators and to the numbers of laborers.

2. Based on the information given in the problem above, you can make a system of equation, as following:

3. By applying the method of substitution, you can solve for from the second equation and substitute it into the first equation to solve for , as following:

4. Now, substitute the value of into the second equation to calculate :

The answer is: 19 equipment operators and 13 laborers.

the correct answer is 828.07

table 3 represents a direct variation function. : )