- anonymous

Jan types at an average rate of 12 pages per hour .at that rate,how long will it take Jan to type 100 pages?

- schrodinger

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- skullpatrol

Any ideas?

- skullpatrol

|dw:1441016435634:dw|

- imqwerty

Adjust ur typing speed to 12pages per hour and practically find out :P :D
Jk

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## More answers

- skullpatrol

|dw:1441016739363:dw|

- anonymous

a) 8 hours and 3 minutes
b)8 hours and 15 minutes
c)8 hours and 20 minutes
d)8 hours and 30 minutes
e)8 hours and 33 1/3 minutes
and the answer is c but why friends

- anonymous

sorry friends i don t write the answers first bec the connection faild soory

- imqwerty

Its okhay :)

- anonymous

ok can u help

- skullpatrol

|dw:1441016929675:dw|

- imqwerty

1hour--------------------->12pages
1/12hours--------------->1page
Multiply both sides by100
So
100/12hours---------->100pages

- skullpatrol

|dw:1441017127325:dw|

- imqwerty

So 100/12hrs = 100/12 x60mins r needed to type 100pages
So he needs 500mins
So that is 8hours 20mins :)

- anonymous

sorry imqwerty but how u know that 1/12 hours ----- 1pages

- phi

a few ways, but this might be the best:
rate * time = amount
this is almost the same problem as
if you go 12 miles per hour, how long to go 100 miles?
here rate is 12 pages per hour
12 * t = 1 page (this is to find how long it takes to type 1 page)
t = 1/12

- phi

but of course you really want
12 * t = 100
and to solve, divide both sides by 12
t= 100/12

- phi

you could also use ratios
\[ \frac{12 \ pages}{1 \ hour}= \frac{100 \ pages}{x \ hours} \]

- anonymous

ok phi but the answer will be by point how i keep it 8 h and 20 how i know that the anser is 20 m not other minutees

- anonymous

plz help

- phi

first what is 100/12 ?

- anonymous

100/12 is 8.333333333

- anonymous

or 25/3

- phi

ok, write it as a mixed number 8 and a fraction

- anonymous

49/3

- imqwerty

@Nourage
i jst divided both sides by 12 to find out time taken to write 1 page :)

- phi

like this
25/3
3 goes into 25 8 times with a remainder of 1
write the remainder over 3
\[ \frac{25}{3}= 8 \frac{1}{3} \]

- phi

that means it takes 8 and 1/3 hours
that is a good answer, but they have the choices as 8 and some number of minutes.
we have to change 1/3 of an hour into minutes
we know 1 hour is 60 minutes
1/3 * 60 = number of minutes.

- anonymous

oh ya thank u very very much friend u are the best (phi) and thank u friends all of u helps me

- anonymous

thanks friends

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