Emma bought 6 new books for her collection. This increased her collection by 12%. How many books did she have before her purchases?
try the equation %/100=part/total
so: 12/100=6/x then solve.
50
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85
2books
To solve this problem, we need to find out the total number of books Emma had before purchasing the new books.
Let's assume the total number of books Emma had before her purchases is 'x'.
According to the problem, Emma bought 6 new books, so her collection increased by 12%.
We can set up the equation:
6 = 0.12x
To solve for 'x', divide both sides of the equation by 0.12:
x = 6 / 0.12
x = 50
Therefore, Emma had 50 books before her purchases.