at 3:55 pm a student begins to do her homework which would take three hours to complete. at 4:15 pm she is interrupted by a telephone call. what part of her homework is left uncompleted?
A. 1/9
B. 2/9
C. 1/3
D. 2/3
E. 8/9

Question

at 3:55 pm a student begins to do her homework which would take three hours to complete. at 4:15 pm she is interrupted by a telephone call. what part of her homework is left uncompleted?
A. 1/9
B. 2/9
C. 1/3
D. 2/3
E. 8/9

anonymous · Answer

It helps to convert everything to minutes.
OK..her homework takes 3 hours. How many minutes is 3 hours?

anonymous · Answer

180 minutes

anonymous · Answer

right. and how many minutes has she already studied when the telephone rings.

anonymous · Answer

50 minutes?

anonymous · Answer

She started her homework ate 3:55...the phone rings at 4:15. That's 20 minutes. Does that make sense?

anonymous · Answer

yea

anonymous · Answer

umm 20/180= how much HW she did

anonymous · Answer

So she still has (180-20)....160 minutes of homework remaining
160 minutes of her 180 minutes of homework still needs to be done?
There's your fraction: 160 / 180
Just simplify it and you're done.

anonymous · Answer

so 160/180 is wat u need to simplify

anonymous · Answer

jkim....don't appreciate the interuption. thanks.

anonymous · Answer

how u get 180 bevause hour=60min so 3times 60 is 180

anonymous · Answer

im just saying fast..

anonymous · Answer

read the website rules: http://openstudy.com/code-of-conduct You're not supposed to just give answers. Walk through interactively how to solve problems.

anonymous · Answer

u just gave her answer btw 160/180 is answer

anonymous · Answer

the answer is E?