SOLUTION: Hi for every shirt sold bob gets 12 dollars. He will receive another 5 dollars for every set of 10 shirts sold. If he sells 100 shirts he will get a 50 dollar bonus.how many will

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Question 1045054: Hi
for every shirt sold bob gets 12 dollars. He will receive another 5 dollars for every set of 10 shirts sold. If he sells 100 shirts he will get a 50 dollar bonus.how many will he have to sell to receive 1372 dollars.
thank you
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +n+ = the number of shirts Bob has to sell
+12n+%2B+%28+n%2F10+%29%2A5+%2B+50+=+1372+
( assuming he sells more than +100+ )
+12n+%2B+n%2F2+%2B+50+=+1372+
+12n+%2B+n%2F2+=+1322+
+24n+%2B+n+=+2644+
+25n+=+2644+
+n+=+105.76+
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He will have to sell 106 shirts
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check the answer:
+12n+%2B+n%2F2+%2B+50+=+1372+
+12%2A106+%2B+106%2F2+%2B+50+=+1372+
+1272+%2B+53+%2B+50+=+1372+
+1272+%2B+103+=+1372+
+1375+=+1372+
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The left side is greater, so I'll try +n+=+105+
+12%2A105+%2B+105%2F2+%2B+50+=+1372+
+1260+%2B+52.5+%2B+50+=+1372+
+1362.5+=+1372+
the left side is smaller, so 106 shirts was correct
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You might want a 2nd opinion also