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Mathematics 15 Online
OpenStudy (anonymous):

In the text the following cost equations were given for gas and solar heating: C(gas)=12000+700n, C(solar)=70000+150n,where n represents the number of years since installation and the cost represents the total accumulated costs up to and including year n. Use the equations to find a better estimate for the intersection point. Round to two decimal places. n=, C= thousand dollars

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