a construction company is drilling a new water well. the company has 10 workers on staff who can operate the…

a construction company is drilling a new water well. the company has 10 workers on staff who can operate the drilling machine. their drilling machine can drill down 2 feet and displace 25 cubic feet of dirt every hour. the company has 3 dump trucks on site that can hold 270 cubic feet of dirt. they can use the drilling machine for 6 hours every workday. the company drills 5 days per week. the well they are drilling will be 55 feet deep. which quantities are required to determine how many workdays it will take the company to drill the new water well? choose all that apply. a. 2 feet b. 3 dump trucks c. 5 days per week d. 6 hours per day e. 10 workers f. 25 cubic feet per hour g. 55 feet h. 270 cubic feet

a construction company is drilling a new water well. the company has 10 workers on staff who can operate the drilling machine. their drilling machine can drill down 2 feet and displace 25 cubic feet of dirt every hour. the company has 3 dump trucks on site that can hold 270 cubic feet of dirt. they can use the drilling machine for 6 hours every workday. the company drills 5 days per week. the well they are drilling will be 55 feet deep. which quantities are required to determine how many workdays it will take the company to drill the new water well? choose all that apply. a. 2 feet b. 3 dump trucks c. 5 days per week d. 6 hours per day e. 10 workers f. 25 cubic feet per hour g. 55 feet h. 270 cubic feet

Answer

Explanation:

Step1: Identify relevant information for work - rate problem

To find the number of workdays to drill the well, we need to know the depth of the well, the rate of drilling per hour, and the number of working hours per day.

Step2: Analyze each option

  • Option A: 2 feet (drilling depth per hour) is needed as it gives the rate of vertical progress per hour.
  • Option B: 3 dump trucks is not needed as it is related to dirt - hauling capacity and not to the time to drill the well.
  • Option C: 5 days per week is not needed as we are looking for workdays, not weeks.
  • Option D: 6 hours per day is needed as it determines the daily working time for the drilling machine.
  • Option E: 10 workers is not needed as the rate of the drilling machine is given and not related to the number of workers.
  • Option F: 25 cubic feet per hour is not needed as we are calculating based on depth and not volume of dirt displaced.
  • Option G: 55 feet (depth of the well) is needed as it is the total work to be done.
  • Option H: 270 cubic feet (capacity of dump trucks) is not needed as it is related to dirt - hauling and not to drilling time.

Answer:

A. 2 feet, D. 6 hours per day, G. 55 feet