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March 13th, 2019, 06:03 AM   #1
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Word problem

Hello, I was just doing this problem; it has explanation too, but I can't think why (25-x) comes. I hope to get an answer from my fellow forum friends.
Thanks in advance.
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Last edited by skipjack; March 13th, 2019 at 03:29 PM.
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March 13th, 2019, 07:29 AM   #2
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since x = total number of ordered t-shirts, (x-25) represents the number of t-shirts beyond the 25 minimum order.

cost = 1.065[(flat rate of \$150 for the first 25 shirts) + (\$5 for each shirt more than the minimum 25)]

$C = 1.065[\$150 + \$5(x-25)]$
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