srihithanelluri
srihithanelluri srihithanelluri
  • 13-03-2022
  • Mathematics
contestada

3 workers can do a job in 28 hours. How many more workers are needed to do this job in 12 hours?

Respuesta :

Laita
Laita Laita
  • 13-03-2022

Answer:

7 workers

Step-by-step explanation:

[tex]\frac{workers first time}{workers second time} = \frac{hours second time}{hours first time}[/tex]

[tex]\frac{3}{x} = \frac{12}{28}[/tex]

cross multiply and it becomes

12x = 3x28

12x = 84

x = 84/12

x = 7 workers

Answer Link
mjl2011ljm
mjl2011ljm mjl2011ljm
  • 17-03-2022

Answer

4

Step-by-step explanation:

3/28=x/12

that is 7 and you need to find how many more workers so you subtract

7-3=4

Answer Link

Otras preguntas

Which amendment was the most important to the Anti-Federalists? Why?
Please try and do q2 and maybe 3,45 POINTS
15 and Brainlyest if possible (Someone else answers)
What did freedom mean in post revolutionary haiti?
What are three examples of the interrelationship between Greek art and religion?
Ariana'a bank statement shows a closing balance of $125.18. There are no outstanding checks or deposits. Her checkbook shows a balance of $127.93. What might ac
The Adventures of Huckleberry Finn Mark Twain 1 You don't know about me without you have read a book by the name of The Adventures of Tom Sawyer; but that ain't
with which type of friends do u keep your personal feelings secret A.Casual friends B.close friends C.opposite sex friends d.personal friends
where is mymensingh
Which word in the list below does NOT logically fit in the group of words listed below? A. un lac B. un fleuve C. un endroit D. une rivière