In a recent year, U. S. advertisers spent $60 billion on television advertising. This number made up 40 percent of total advertising. What was the dollar amount spent by U. S. advertisers on all other forms of advertising? How many billions?

$90

Explanation:

Let x = Total advertising cost (in billions).

Given: U.S. advertisers spent on television advertising = $60 billion = 40 percent of total advertising.

i.e. 0.40x= 60

i.e. Total advertising cost = $150 billions

The amount spent by U.S. advertisers on all other forms of advertising = (Total advertising cost) - (Amount spent on spent on television advertising)

= $(150-60)

= $90

Hence, the amount spent by U.S. advertisers on all other forms of advertising = $90

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