math

posted by .

Business and finance. Avirus scanning program is checking every file for viruses.
It has completed checking 40% of the files in 300 seconds. How long should it take
to check all the files?

  • math -

    if you add another 40%, you will be done with 80% in 600 seconds. 20% is left. .20 times 600=120 sec

    600+120=720 sec

  • math -

    Jen is wrong.

    A simple test of taking 40% of her answer of 720, which would be 288, would have indicated it was not right

    let the total time be x seconds
    so .4x = 300
    x = 300/.4 = 750 seconds

    (check: 40% of 750 = 300)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    A virus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files?
  2. math

    Please help A school had 900 students at the start of a school year. If there is an enrollment increase of 7% by the beginning of the year, what is the new enrollment?
  3. Math

    Avirus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files?
  4. help C program

    I keep getting an error that says "no new endline at the end of file" but i pressed enter and it still won't work. i am compiling with gcc are there anything else i should look at?
  5. Math

    Can you tell me if I got these wrong or right?
  6. math

    A virus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all files?
  7. Caplan

    A virus-scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files
  8. finance

    In an online, real-time system, which of the following would be most likely to be used as backup for an application's master file maintained on magnetic disk?
  9. math

    will someone check my work please?A virus scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files?
  10. Computer

    After writing the program of Exercise 17.7, write a simple program to create some test data for checking out the program. Use the following sample account data: Master file Account number Name Balance 100 Alan Jones 348.17 300 Mary …

More Similar Questions