y is equal to 12 times the difference between a number and 4. Which of the following equations models this situation?
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Answer: In 2005 the amount spend on internet ads = $74.6 billions.
In 2009 spending on internet search ads will reach $102 billion .
Step-by-step explanation:
Given : The number of internet paid search ads is increasing as advertisers move away from traditional marketing methods.
The equation can be used to project spending on internet search ads, in billions of dollars, x years after 2000.
To estimate spending on internet ads in 2005.
We need to put x= 5 in the above equation [∵2005-2000=5]
i.e. In 2005 the amount spend on internet ads = $74.6 billions.
Put y= 102 in the given equation, we get
[Subtract 40.1 from both sides]
And 2000+9=2009 [x is the number of years after 2000]
Hence, in 2009 spending on internet search ads will reach $102 billion .