Posted by **Amanda** on Friday, April 27, 2007 at 7:06pm.

Money made for a sandwich shop was 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?

120,000

simplest way: by ratio

2000:120000=x:180000

2/120 = x/180000

120x = 360 000

x = 3000

second way

let revenue be R, let Advertising cost be A

then R = kA, where k is a constant

replace the given case where R=120000 and A = 2000

120000=k(2000)

k = 60 000

so R = 60 000A

sub 180000 for R....solve ... A=3000

## Answer this Question

## Related Questions

- math, correction - The revenue for a sandwich shop is directly proportional to ...
- business and finance - The revenue for a sanwich shop is directly proportional ...
- algebra - the revenue for a sandwich shop is directly proportinal to its ...
- math - A cereal company finds that the number of people who will buy one of its ...
- calculus - It is estimated that an annual advertising revenue received by a ...
- math - Designer Dolls, Inc. found that the number N of dolls sold varies ...
- Calculus - The relationship between the amount of money x that Cannon Precision ...
- Math-Help - A manufacturer has determined that pro t P (in dollars) is a ...
- Math( help please ! ) - The profit p(x) of a cosmetics company , in thousands of...
- accounting - initial investment in the company of $26,200 cash. Here are the ...