maya105 maya105

22-12-2016
Mathematics

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a school library has a hundred and twenty DVDs in its collection given that 45% of the DVDs are about science and 35% are about history how many of the DVDs are about other subjects

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kona123 kona123

22-12-2016

45 % + 35% is 80%
80% of 120 (.80 times 120) = 96
120-96= 24
24 of the books are other subjects

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sarahg1233 sarahg1233

22-12-2016

20% of the DVDs are about other subjects

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