Question

Emily has printer paper and lined paper for her classroom. The rams of printer paper have 50 sheets per ream and cost $10. The reams of lined paper have 75 sheets and cost $12. Emily will order a total 45 reams of paper and her total cost is $490. What system of equations gives the correct relationship helween the preams of printer paper and / rcams of lined paper

Answer 1

We are told that the cost of printer paper is $10 and the cost of lines paper is $12 if the total cost is $490 we can express that mathematically as:

`12l+10p=490`

We are also told that the total number of paper is 45 reams, this can be expressed mathematically as:

`l+p=45`

Therfore, the system of equations is:

`\begin{gathered} l+p=45,(1) \\ 12l+10p=490,(2) \end{gathered}`