SOLUTION: The revenue for a sandwich shop is directly proportional to its advertising budget. Whe the owner spent $2000 a month on advertising, the revenue was $120,000. If the revenue is

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Question 118049: The revenue for a sandwich shop is directly proportional to its advertising budget. Whe the owner spent $2000 a month on advertising, the revenue was $120,000. If the revenue is now $180,000, how much is the owner spending on advertising?
Answer by psbhowmick(878) About Me  (Show Source):
You can put this solution on YOUR website!
The revenue (R) for a sandwich shop is directly proportional to its advertising budget (B).
So, R+=+kB.
When B = 2000, R = 120000, so k+=+R%2FB+=+120000%2F2000+=+60.
So when R = 180000, B+=+R%2Fk+=+180000%2F60+=+3000.
Hence, the owner spend $3000 on advertising.