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

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Question 119690: The revenue for a sandwich shop is directly proportional to its advertising budget. When the owner spends $ 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 josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
This is a proportion, or ratio
2000%2F120000+=+x%2F180000
multiply both sides by 10000
2000%2F12+=+x%2F18
x+=+%283%2F2%29%2A2000
x+=+3000
The owner is spendinf $3000 on advertising