Carmen earns $7.50 an hour pLu's tips, as a waitress. Suppose she works 24hours in one week how much money in tips (x) must Carmen receive to earn more then$250 that week

Hours Wages = $7.5 / Hour

Since we do not know the tips, let us assume it is x

Carmen Worked 24 hours

Total amount she earned = (24*7.5) + x = 250

180 + x = 250

x = 250-180 = 70

Carmen should earn tips more than $ 70 in 24 hours in order her to receive more than $250 in that week