help!
George runs an outlet where he sells personalized T-shirts. He spends $35 to rent the printing machine and $25 for phone service each month.
If each T-shirt costs $5.80, and he sells them for $10, George will start making a profit after selling shirts ? in a month.

Question

help!
George runs an outlet where he sells personalized T-shirts. He spends $35 to rent the printing machine and $25 for phone service each month.
If each T-shirt costs $5.80, and he sells them for $10, George will start making a profit after selling shirts ?  in a month.

sepeario · Answer

Okay let's do some math here. $$35+25+5.8x=E$$, where x is the number of shirts and E is expenditure. Then the equation for revenue is obviously $$10x$$ so the inequality is $$70+5.8x <10x$$

sepeario · Answer

For the profit to be positive.

anonymous · Answer

my choices were 4, 14, 15, and 42

anonymous · Answer

I would simply do it by finding the intersection of two lines.
One line: your average cost to make a shirt (70+5.8x)
Second line: you profit (10x)
Set them equal to each other and solve

sepeario · Answer

pellet I stuffed up :( it's supposed to be 60 not 70. Sorry. $$4.2x >60, x >14$$

anonymous · Answer

So 70+5.8x=10x solve
I think that works?

sepeario · Answer

That's essentially what I did.

sepeario · Answer

In fact that's exactly what I did.

anonymous · Answer

16.6667 but thats not right

sepeario · Answer

No read my next comment it's 14

sepeario · Answer

Above

anonymous · Answer

(35+25=60 not 70) we both messed up at first binks

anonymous · Answer

(so in my equation replace 70 with a 60

anonymous · Answer

And yes sepeario I know you were correct. I was only simplifying what you said

anonymous · Answer

Does this make sense binks?

anonymous · Answer

thanks sorry i had to go Thanks for the help!

anonymous · Answer

wish I could give you both medals thanks so much!!