Asoftball team bought a box of sweatshirts for $240. e.ach sweatshirt cost $12 to print and will sell for $18. graph a system of equations to find the number of sweatshirts the softball team needs to sell in order to break even

The number of sweatshirts to sell in order to break even is 40

Step-by-step explanation:

Let x be the number of sweatshirts. We are looking for break even, which means profit is 0 here.

And softball team purchased a box for 240$ and for printing it costs 12$ per shirt.

So total cost of sweatshirts = 240+12x

And selling price is 18$ per shirt.

Hence selling price for x shirts = 18x.

Now we need to graph y=18x and y=240+12x first and then look for intersection to find the break even.

From the graph attached,  we can see that both lines are intersecting at x=40.

Hence number of sweatshirts to sell in order to break even is 40.

The average rate of change over the given time interval is the difference quotient , so for this value to be zero, it must be the case that , i.e. the same number of tickets were sold on the 4th day as on the 10th day.