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Mathematics 7 Online
OpenStudy (lukecrayonz):

Precalc/alg question, completely forget o.O http://puu.sh/1y0yI

OpenStudy (anonymous):

If t=the thompson's family number of hours of usage and g=the green's family number of hours of usage. 35t+40g=1325 t+g=35 Now you have two equations with 2 unknowns. Solve them and you'll get the number of hours per family.

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