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Variable Equations [#permalink]
01 Feb 2010, 19:01
87% (01:48) correct
12% (01:37) wrong based on 8 sessions
Hey guys, the book gave a plug-in solution to this question which didn't help me actually understand this. Can you guys help describe an alternative straight-foward solution instead? Thanks
Sarah's seafood restaurant gets a delivery of fresh seafood every day, 7 days per week, and her delivery company charges her d dollars per delivery plus c cents per item delivered. If lst week Sarah's seafood restaurant had an average of x items per day delivered, then which of the following is the total cost, in dollars, of last week's deliveries ?
A. 7cdx/100 B. d + 7cx/100 C. 7d + xc/100 D. 7d + 7xc/100 E. 7cdx