At Lincoln Library there are two ways to pay for copying. You can pay 6 cents a copy, or you can buy a plastic card for $7 and then pay 5 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 699 copies, which way of paying has the least cost? they are the samecannot be determined without cardwith card
At Lincoln Library there are two ways to pay for copying. You can pay 6 cents a copy, or you can buy a plastic card for $7 and then pay 5 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 699 copies, which way of paying has the least cost? they are the samecannot be determined without cardwith 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 6 cents a copy, or you can buy a plastic card for $7 and then pay 5 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 699 copies, which way of paying has the least cost?
copies
(b) If you wish to make 699 copies, which way of paying has the least cost?
they are the samecannot be determined without cardwith card
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