Mathematics, 25.01.2022 21:30 lilo1841

In multi-media industry, manufactures claim that the CD disc lifespan is ten years less than the DVD disc. The lifespan of Blu-Ray disc is three times that of CD disc.
If the total lifespan of the three types discs is 80 years, calculate the longevity of DVD disc. (A-CED. 1/5 points)
DVD Lifespan

what is the dvd lifespan

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