Amasonry contractor is preparing an estimate for building a stone wall and gate. he estimates that the job will take a 40-hour work week. he plans to have two laborers at $10 per hour and six masons at $21 per hour. he'll need $3337 worth of materials and wishes to make a profit of $400. write a mathematical statement that will give the estimated cost of the job. then calculate this total.

$9,577

Step-by-step explanation:

Given:

Estimated time for the job = 40 hours

Number of laborers = 2

Per hour laborers cost = $10

Number of masons = 6

Per hour mason cost = $21

Worth of material = $3337

Estimated Profit = $400

Now,

The total amount spent on laborers

= Number of laborers × total working hours × Cost per hour

= 2 × 40 × $10

= $800

The total amount spent on masons

= Number of masons × total working hours × Cost per hour

= 6 × 40 × $21

= $5040

Hence,

the total estimated cost for the job

The total amount spent on laborers                                    $800

The total amount spent on masons                                     $5,040

Worth of material                                                                   $3,337

Estimated Profit                                                                      $400

Total estimated cost                                                               $9,577

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i