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August 29, 2015

Homework Help: Algebra

Posted by Jin on Thursday, August 25, 2005 at 4:03pm.

For 1980 through 1990, the average weekly earnings (in dollars)for workers in the United States can be modeled by E= 14.5t + 270, where t is the number of years since 1980. Approximate the average weekly earnings in 1980 and 1990.

I am having trouble understanding what I have to do for this problem. Please help me as soon as possible! Thanks.


Year t Earnings(15.5t+270)
1980 0 270
1981 1 285.5
1982 2 ....

1990 10
So fill in the table, or just use the formula. The key is to compute t. t=Year-1980

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