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Practice problems for Percent of a Quantity as a Rate

Practice problems for Percent of a Quantity as a Rate. rate percent quantity. Find the percent of the quantity as a rate per 100. Dave works at a computer company that makes hard drives. He saw 150 bad hard drives today on the assembly line, but he saw 360 hard drives total.

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Practice problems for Percent of a Quantity as a Rate

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  1. Practice problems forPercent of a Quantity as a Rate rate percent quantity

  2. Find the percent of the quantity as a rate per 100. • Dave works at a computer company that makes hard drives. He saw 150 bad hard drives today on the assembly line, but he saw 360 hard drives total. • Find the rate per 100 of the hard drives that were not good. • Find the rate per 100 of the hard drives that were good.

  3. Find the percent of the quantity as a rate per 100. • Kathy works at a nursery that grows pine trees for reforestation projects. After walking through the nursery she found that of the 5,234 trees on the nursery 321 were infected by beetles. • Find the rate per 100 of the trees that are infected by beetles. • Find the rate per 100 of the trees that are not infected by beetles.

  4. Find the percent of the quantity as a rate per 100. • Katie is a biologist studying Salmon swimming upstream. She found that out of 10,356 salmon only 1,420 did not make it to their first destination upstream. • Find the rate per 100 of the salmon that did not make it up stream. • Find the rate per 100 of the salmon that did make it up stream.

  5. Challenge • A doctor is looking at the immunity rates of a new flu virus. The rate per 100 of those exposed to the virus that came down with symptoms are 23%. If 9,212 people were exposed. How many people came down with the flu? • How many people appear to be immune to the flu?

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