Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Variable Equations [#permalink]
01 Feb 2010, 19:01
This post was BOOKMARKED
91% (02:10) correct
9% (01:37) wrong based on 26 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