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Mathematics 8 Online
OpenStudy (phagey):

Mike and Kim invest $18,000 in equipment to print yearbooks for schools. Each yearbook costs $5 to print and sells for $15. How many yearbooks must they sell before their business breaks even? A. 1,110 yearbooks B. 3,600 yearbooks C. 1,800 yearbooks D. 1,200 yearbooks A B C D 2. When solving a system of equations using elimination, it is necessary to make sure the coefficients in front of one of the variables are additive inverses. A. True B. False A B

OpenStudy (phagey):

@Michele_Laino

OpenStudy (michele_laino):

If I sell one Yearbook, then I earn \(15-5=\$10\), so the business breaks even, if I sell: \[\frac{{18000}}{{10}} = ...?\] copies of the yearbook

OpenStudy (phagey):

its 1,800 @Michele_Laino

OpenStudy (michele_laino):

that's right!

OpenStudy (phagey):

what about number 2 @Michele_Laino

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