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Mathematics 22 Online
OpenStudy (anonymous):

I NEED HELP!!! Plan A: y=0.45x+30 Plan B: y=0.45x+40 Plan C: y=40x+60 After how many minutes will Plan B equal Plan C? Plan B will equal Plan C after how many minutes. After how many minutes will Plan A equal Plan C? Plan A will equal Plan C after how many minutes.

OpenStudy (anonymous):

make the 2 equations equal( b =c or A =c) and solve for x

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