Question

The cost of printing T-shirts is defined by the equation C = 250+5.5n, where C represents the total
cost and I represents the number of T-shirts. If the school paid $965.00, how many T-shirts were
printed?

Answer 1

Answer:

The school paid for printing 130 T-shirts

Step-by-step explanation:

Function Models

We are given the cost of printing n T-shirts as the equation:

$C=250+5.5n$

For example, if 10 T-shirts were printed, the school would pay:

$C=250+5.5(10)=250+55=\ 305$

We know the school paid $965 and are required to find the number of T-shirts that were printed. If we use the equation with C=965, we can solve it for n:

$965=250+5.5n$

$965-250=5.5n \Rightarrow 5.5n=715$

Solving:

$n=715/5.5=130$

The school paid for printing 130 T-shirts