Shirt Colors

Question

A school choir needs to make T-shirts for its 75 members and has set aside some money in their budget to pay for them. The members of the choir decided to order from a printing company that charges $3 per shirt, plus a $50 fee for each color to be printed on the shirts. 

1. Write an equation that represents the relationship between the number of T-shirts ordered, the number of colors on the shirts, and the total cost of the order. If you use a variable, specify what it represents.
2. In this situation, which quantities do you think can vary? Which might be fixed

Answer 1

Since we know 75 shirts are needed so that is fixed and each will cost $3 but we don't know the colors so that would be a variable, x, we only know colors cost $50 each.

Cost = 3(75) + 50x