Question

Thomas is buying football jerseys for his high school football team. Thecost of each jersey is $80. The company also charges a processing fee of$100.Write an equation that represents Thomas' total cost for purchasing xnumber of jerseys.What is Thomas' total cost, if he buys 55 jerseys?

Answer 1

Thomas is buying football jerseys for his high school football team.

The cost of each jersey is $80.

The company also charges a processing fee of $100.

We could write an equation that models Thomas's total cost for purchasing x

number of jerseys.

Since for every x jerseys Thomas buys, he pays

`80x\text{ dollars}`

But he also has to pay the company's processing fee, this is independent of the quantity bought.

So, the total cost for buying x number of jerseys is;

`y=80x+100\text{ dollars}`

ii. What is Thomas's total cost, if he buys 55 jerseys?

We can use our formula,

`\begin{gathered} y=80x+100\text{ , when x =55, we have;} \\ y=80(55)+100 \\ y=4400+100 \\ y=4500\text{ dollars} \end{gathered}`

Therefore, Thomas's total cost for 55 jerseys is $4500