Answer:
The home printer is faster.
Step-by-step explanation:
25 photos in 12.5 minutes
12.5 is half of 25 and therefore this is a two to one ratio.
So 2 photos print in 1 minute with the office printer.
And 4 photos in 2 minutes(this is relevant later)
The home printer prints 15 photos in 6 minutes. Since 15 is not divisible by 6 without a remainder divide both by 3.
So 5 photos in 2 minutes. This is faster than the office printer.
To find how many photos it would print in 12 more minutes, simply multiply 15 by two, since the minutes(6) was multiplied by 2 to get 12. This leaves you with an answer of 30 photos in 12 minutes
Answer:
The home printer is faster.
We can print 6 more photos in 12 minutes using the faster printer.
Step-by-step explanation:
We can find how many photos per minute each printer prints using the following formula:
[tex]PPM = \frac{p}{t}[/tex]
In which p is the number of photos and t is the time in minutes.
Officer
An officer printer prints 25 photos in 12.5 minutes. This means that [tex]p = 25, t = 12.5[/tex]. So
[tex]PPM = \frac{p}{t} = \frac{25}{12.5} = 2[/tex]
The officer printer prints 2 photos per minute.
Home
A home printer prints 15 photos in 6 minutes. This means that [tex]p = 15, t = 6[/tex]. So
[tex]PPM = \frac{p}{t} = \frac{15}{6} = 2.5[/tex]
The home printer prints 2.5 photos per minute. So, it is faster than the office printer.
How many more photos can you print in 12 minutes using the faster printer?
Using the officer printer, that prints 2 photos a minute, we can print 12*2 = 24 photos in 12 minutes.
Using the home printer, that prints 2.5 photos a minute, we can print 30 photos in 12 minutes. This means that we can print 6 more photos in 12 minutes using the faster printer.
