Question 87327: In Problem 64, you’re essentially solving a problem like Example 9 (p 556). Use one ordered pair to find k, and then use that value along with the other given value to determine what its corresponding ordered pair will be.
64) Business and finance. The revenue for a sandwich shop is directly proportional to its advertising budget. When 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 favegirl13(22)   (Show Source):
You can put this solution on YOUR website!cross multiplication is a good way to find the answer
2,000/120,000=x/180,000
360,000,000/120,000
=$3,000 to spend if revenue is $180,000
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