At Lincoln Library there are two ways to pay for copying. You can pay 14 cents a copy, or you can buy a plastic card for $6 and then pay 4 cents a copy. Let x be the number of copies you make. Write an equation for your costs for each way of paying. (Express C(x) in dollars.) without card C(x) = with card C(x) = (a) How many copies do you need to make before buying the plastic card is the same as cash? ______copies (b) If you wish to make 50 copies, which way of paying has the least cost? (choose one ) they are the same. without card. cannot be determined. with card.
At Lincoln Library there are two ways to pay for copying. You can pay 14 cents a copy, or you can buy a plastic card for $6 and then pay 4 cents a copy. Let x be the number of copies you make. Write an equation for your costs for each way of paying. (Express C(x) in dollars.) without card C(x) = with card C(x) = (a) How many copies do you need to make before buying the plastic card is the same as cash? ______copies (b) If you wish to make 50 copies, which way of paying has the least cost? (choose one ) they are the same. without card. cannot be determined. with card.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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At Lincoln Library there are two ways to pay for copying. You can pay 14 cents a copy, or you can buy a plastic card for $6 and then pay 4 cents a copy. Let x be the number of copies you make. Write an equation for your costs for each way of paying. (Express C(x) in dollars.)
without card C(x) =
with card C(x) =
(a) How many copies do you need to make before buying the plastic card is the same as cash?
______copies
(b) If you wish to make 50 copies, which way of paying has the least cost? (choose one )
they are the same.
without card.
cannot be determined.
with card.
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