Aclub decides to sell t-shirts for 15 as a fundraiser. it costs 20 plus 9 per t-shirt to make the t-shirts. write and solve an equation to find how many t-shirts the club needs to make and sell in order to profit at least 150

The club needs to make and sell 29 t-shirts in order to profit at least 150.

Explanation

Suppose , the number of t-shirts the club needs to make and sell is

Selling price of each t-shirt is 15, so the total selling price of t-shirts

It costs 20 plus 9 per t-shirt to make the t-shirts. So, the total making cost of t-shirts

Now for getting profit at least 150 , the equation will be.....

It means the value of x should be at least 28.333...

As here x is the number of t-shirts and it can't be in decimal , so the minimum value of x will be 29.

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.