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16 December, 04:24

In 1969, 85% of freshmen considered the objective developing a philosophy of life essential. Since then, the percentage has decreased by approximately 0.9 each year. By which year would 35% or college freshmen consider that important?

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  1. 16 December, 04:38
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    Alright, since it decreases by 0.9 each year, the amount it decreases in x years = 0.9*x. We need to find out how long it takes to decrease 85-35=50 percent, so 0.9*x=50. Dividing both sides by 0.9, we get x=around 56 (we rounded up from 55 + something). Since we start at 1969, we get our end time to be

    1969+56 (since we rounded up) to get 2025. We add the 2 up because it takes 56 years to change
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