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15-03-2017
Mathematics

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You buy a new computer for $2,100. the computer decreases by 50% annually.when will the computer have a value less than $100?

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beamala beamala

15-03-2017

It should be after 5 years:
2100:2=1050 (after 1 year)
1050:2=525 (after 2 years)
525:2= 262.5 (after 3 years)
262.5:2= 131.25 (after 4 years)
131.25:2= 65.625 (after 5 years)

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