Question

Question #19173

Answer 1

0.3

Explanation:

Divide the number of pages by the time

R = D/T

R the rate is the number of pages per min.

D = The distance is number of pages = 30

T = the Time = 9 so

`R = 30/9` This can be factored

`R = 10 xx 3/ (3 xx 3 )` This leaves

`R = 10/3` or

`R = 9/3 + 1/3` so

`R = 3 + 1/3` pages/min

`R=3.33` pages/min `->` `3.33` pages printed in `1` minute

To find out time take to print `1` page->

`1/3.33` min/page

`(color(red)(0.3)cancel(1))/(color(red)(1)cancel(3.33))` min/page

`0.3/1` min per page.

Therefore it takes `0.3` minutes for `1` page to print.

Answer 2

The printer takes `0.3` minutes to print one page

Explanation:

The data given to us in the question says that the printer can print `30` pages in `9` minutes.

`(9 min)/(30"pages")` `->` `9` minutes for every `30` pages.

`(color(red)3cancel9 min)/(color(red)(10)cancel(30)"pages")`

`(3 min)/(10 "pages")` `->` `3` minutes for every `10` pages.

`(color(red)(0.3)cancel(3) min)/(color(red)(1)cancel(10)"pages")`

`(0.3 min)/(1"page")` `->` `0.3` minutes for `1` page.

Answer 3

`18 seconds` per page

Explanation:

`30` pages= 9 minutes

`1` page`=1/cancel30^10xxcancel9^3/1`

`=3/10` minutes

`3/cancel10^1xxcancel60^6/1=18 seconds` per page

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

check:. `18xx30=540 seconds`

`cancel540^9/cancel60^1=9` minutes