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Sarah's seafood restaurant gets a delivery of fresh seafood every day, 7 days per week, and her delivery company charges

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by BTGmoderatorDC » Mon Jul 06, 2020 7:52 pm
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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


OA D

Source: Princeton Review
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Re: Sarah's seafood restaurant gets a delivery of fresh seafood every day, 7 days per week, and her delivery company cha

by Jay@ManhattanReview » Mon Jul 06, 2020 11:16 pm
BTGmoderatorDC wrote: ↑
Mon Jul 06, 2020 7:52 pm
 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

OA D

Source: Princeton Review
Total cost in dollars for 1 day = $(d + c*x/100)

So, the total cost in dollars for 7 days = $(7d +7 c*x/100)

Correct answer: D

Hope this helps!

-Jay
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Re: Sarah's seafood restaurant gets a delivery of fresh seafood every day, 7 days per week, and her delivery company cha

by Scott@TargetTestPrep » Sun Jul 12, 2020 2:31 pm
BTGmoderatorDC wrote: ↑
Mon Jul 06, 2020 7:52 pm
 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


OA D

Solution:

Each day, the average cost of delivery would be d + c/100 * x = d + cx/100 dollars. Therefore, for a week of 7 days, the total cost of deliveries is 7(d + cx/100) = 7d + 7cx/100 dollars.

Answer: D

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