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LenKa [72]
3 years ago
7

Notebooks cost $1.20 each. This weekend they will be $.80 What percentage is the sale?

Mathematics
1 answer:
geniusboy [140]3 years ago
6 0
The sale is 33% off notebooks. This can be found by first subtracting .8 from 1.2

1.2-.8=.4    Now divide .4 by 1.2 to get your answer.

\frac{.4}{1.2}=.33

.33=33%

You can also solve this mentally because if you know your basic multiplication tables, 3*4=12 and so \frac{2}{3} of 12 would equal 8.

Does you understand it now?

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