Question

Joyce is buying supplies at the school bookstore. A pencil costs $0.25, a notebook costs $1.75, and a piece

of graph paper costs $0.05. Which equation below could Joyce use to determine the total cost, c in cents , of purchasing pencils, notebooks, and pieces of paper.

Answer 1

Let Pencils be P

Let notebooks be N

Let graph paper be G

Let cost be C

(Always write a let statement before you write and algebraic equation)

C= (Px0.25)+(Nx1.75)+(Gx0.05)

Answer 2

`C = 0.25x +1.75y +0.05z` in dollars

Explanation:

Let 'x' be the number of pencils, 'y' be the number of notebooks, and 'z' be the number of graph papers bought. Then the total cost 'C' in dollars should be:

`C = 0.25x +1.75y +0.05z`