anonymous
  • anonymous
Ann had 45 fliers to post around town. Last week, she posted 2/3 of them. This week, she posted 4/5 of the remaining fliers. How many fliers has she still not posted? i got 6 3/4 but it said i was wrong :(
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
24 is that right?
anonymous
  • anonymous
So the first week she posted 45 (2/3) or 30 of them and had 15 left. This week she posted 15 (4/5) of them so had 12 left.
anonymous
  • anonymous
So, 1/3 of the posters were not originally posted. Then, 1/5 of the remaining 1/3 were not posted. So, 1/5 of 1/3 is 1/15. 45/15 = 3.

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anonymous
  • anonymous
oops I meant 3 left
anonymous
  • anonymous
THREE. :3
anonymous
  • anonymous
12 is the right answer I am pretty sure
anonymous
  • anonymous
three was right! :) i cant get this one either. There are 75 students in a speech contest. Yesterday, 1/5 of them gave their speeches. Today, 1/3 of the remaining students gave their speeches. How many students still haven't given their speeches?
anonymous
  • anonymous
Again 75 total and 1/5 gave their speech -> 75 * 1/5 = 15 60 were left (75 - 15) 60 and 1/3 gave their speech -> 60 * 1/3 = 20 40 left (60 - 20)
anonymous
  • anonymous
1/5 of them were omitted the first time. 1/3 of the 1/5 then gave speeches. 1/5 of 1/3 is 1/15, again. 75/15 = 5.
anonymous
  • anonymous
** who have given their speech...then 75 - 5 = 7- students.
anonymous
  • anonymous
*** ugh, stupid keyboard...70.
anonymous
  • anonymous
40?
anonymous
  • anonymous
it said 70 was wrong.
anonymous
  • anonymous
Wow, I completely screwed that problem up..:P sorry, I was distracted xD
anonymous
  • anonymous
awkward... looks like TBates beat you too it
anonymous
  • anonymous
40 is what it should be.
anonymous
  • anonymous
Stfu Chad.
anonymous
  • anonymous
haha sorry...
anonymous
  • anonymous
great then what would this one be?? There are 90 new houses being built in a neighborhood. Last month, 1/3 of them were sold. This month, 1/6 of the remaining houses were sold. How many houses are left to be sold?
anonymous
  • anonymous
this one i'll try
anonymous
  • anonymous
50!
anonymous
  • anonymous
45..
anonymous
  • anonymous
She needs more than to just be told the answer. 1/3 of the 90 houses were sold, leaving 60. 1/6 of the 60 were sold, leaving 50. That's how Chad got his answer.
anonymous
  • anonymous
i got 50
anonymous
  • anonymous
Sh*t.
anonymous
  • anonymous
tbates am i right?
anonymous
  • anonymous
You are!
anonymous
  • anonymous
ok just because he has a giant green "pi" as his picture doesnt mean he is better than us at math...
anonymous
  • anonymous
"You are!"
anonymous
  • anonymous
lol he has just been right every time i've asked him. no offense!!! :)
anonymous
  • anonymous
A bookstore had 64 copies of a magazine. Yesterday, it sold 1/4 of them. Today, it sold 3/4 of what remained. How many copies does the bookstore have left? i got 28 Am i correct???
anonymous
  • anonymous
i think it should be 12
anonymous
  • anonymous
It should be 12 like chad said
anonymous
  • anonymous
thank you

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