minimum number of...

Yes. Remember what I suggested several times? Top down thinking.
So, Profit= sales-cost. Can you now substitute the right expressions for sales and cost?
Profit 900
Sales = 15n ( 15 dollars per shirt)- 150 + 6n (cost of manufacturing)
 
Profit 900
Sales = 15n ( 15 dollars per shirt)- 150 + 6n (cost of manufacturing)
#27 is correct, this is wrong. See the problem?

Moral of the story: If you had started with Profit = Sales - Cost you would not have thrown 900=150 +6n + 15n or (150 + 6n) -15n = 900 at us.
 
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This thread is going nowhere! We must admit that some just refuse to be helped.
It is the case the if we don't give out the solution whole-cloth they will not try.
Close this thread.
 
900=15n - (150 + 6n)
900=15n - 150 - 6n grouping like terms
900 + 150 = 15n-6n
1050 = 15n - 6n
1050 = 9n
n= 116
 
This thread is going nowhere! We must admit that some just refuse to be helped.
It is the case the if we don't give out the solution whole-cloth they will not try.
Close this thread.
I'm so sorry
 
This thread is going nowhere! We must admit that some just refuse to be helped.
It is the case the if we don't give out the solution whole-cloth they will not try.
Close this thread.
I disagree. Is there a deadline?
 
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