Solve the problem.
-A certain store has a fax machine available for use by its customers. The store charges $2.40 to send the first page and $0.45 for each subsequent page. The total price, P, for the faxing x pages can be modeled by the Formula P = 0.45(x - 1)+ 2.40. Determine the number of pages that can be faxed for $6.45.
A)14 pages
B)3 pages
C)57 pages
D)10 pages

Question

Quizplus · Accepted Answer

To find the number of pages that can be faxed for $6.45, substitute $6.45 for P in the formula and solve for x: $6.45 = 0.45(x - 1) + 2.40. Simplifying, we get $6.45 = 0.45x - 0.45 + 2.40. Adding 0.45 to both sides gives $6.90 = 0.45x + 2.40. Subtracting 2.40 from both sides gives $4.05 = 0.45x. Dividing both sides by 0.45 gives x = 9. Since x represents the total number of pages, including the first page, the answer is 9 + 1 = 10 pages.

Solve the Problem. -A Certain Store Has a Fax Machine Available for Use