juciystar234
At the library, you find 9 books on a certain topic. The librarian tells you that 55% of the books on this topic have been signed out. How many books does the library have on this topic?
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JuanitaM
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you solve this by finding out what is the percent of books are in the library
JuanitaM
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if 55 percent gone, than 45% remains (subtract from 100%)
juciystar234
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Wouldn't it be 5 books?
JuanitaM
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read your question...they have 9 books there so they HAVE to have more in total
juciystar234
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55%
JuanitaM
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so 9/.45 = 20
they have 20 books total
JuanitaM
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so lets check...55% are checked out
so 20* .55 = 11
that would leave 9 in the library (20-11 = 9)
did you follow?
juciystar234
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So 9 - 20?
juciystar234
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Which is 11?
juciystar234
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Oh yeah... Ok know i get it!!! Thanks so much! :D
JuanitaM
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You are more than welcome...