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Drew bought a chemistry book for $30. Later that book was marked down by 20%. By how much has that value been decreased? Btw please show work.
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4 votes
Drew bought a chemistry book for $30. Later that book was marked down by 20%. By how much has that value been decreased? Btw please show work.

User Jacoblaw
by
7.6k points

2 Answers

6 votes
30 over 100 times 20= 6
so it decreased by 6 dollar
User Pinpickle
by
6.7k points
2 votes
Solution:


30 - (30*0.80) = 30 - 24 = 6

or you can do


30 * 0.20 = 6
User Nwahmaet
by
7.0k points
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