emili11 emili11

10-02-2017
Mathematics

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Pristine House Cleaners charges $19.85 plus $32 a room. Sparkle housecleaners charges $61.85 plus $18 a room. Right and solve an equation to find the number of rooms for you which the total cost of both housecleaners is the same?

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nineex5 nineex5

10-02-2017

19.85+(32r)=61.85+(18r)
32r-18r=61.85-19.85
14r=42
r=42/14
r= 3

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