Amachine prints 8 banners in 120 seconds. how many seconds does it takes to print 1 banner?

It takes 15 minutes to print  1 banner.

Step-by-step explanation:

Given:

The number of banner printed = 8

Time taken to print  8 banner =   120 seconds

To Find:

The time taken to print one banner = ?

Solution:

Let the time taken to print one banner be x

It takes 120 seconds to print one banner

Time taken to print one banner x

=>

=>

=>15

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13