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Jay, a freelance editor, charges the rates shown in the table below to edit manuscripts. The cost per page increases as the quality of editing improves. Jay also gives a 5% discount if the entire amount is paid up front.


'Type of Editing' and 'Cost per page' as the column headings.


Express Proofreading costs $3.00,

Basic Proofreading - $3.95

Extended Proofreading - $5.00

Deep Editing - $13.00

Ellen has a 40-page manuscript. The equation below shows the relationship between the total cost of editing 40 pages, T, and the cost per page, c, if she gets the 5% discount.


40c - 0.05(40c) = T


Using the equation, what is the best quality of editing that Ellen can get done for a maximum of $190?

AExpress proofreading
BBasic proofreading
CExtended Proofreading
DDeep editing

Verified Answer :

evandeek

Shouldn't it be C? (Extended Proof reading) If you plug in 5 for c then the solution comes out as 190.

40(5) - 0.05(40(5)) =  190

200 - 0.05(200) = 190

200 - 10 = 190

The correct answer is:

C) Extended Proofreading

Explanation:

The equation we are given is 40c-0.05(40c)=T.  Since she can spend no more than 190, we let T be 190:

40c-0.05(40c)=190

Simplifying, we have

40c-2c=190

Combining like terms,

38c=190

Divide both sides by 38:

38c/38 = 190/39

c=5

The $5 per page cost is extended proofreading.

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