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Approximately how much more was spent in 1984 for advertising in magaz
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13 Mar 2025, 11:34
13 Mar 2025, 11:34
Expert Reply
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Question Stats:
0% (00:00) correct
100% (02:28) wrong based on 3 sessions
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Approximately how much more was spent in 1984 for advertising in magazines than on advertising in newspapers?
A. 24$ million
B. 49$ million
C. 150$ million
D. 350$ million
E. 490$ million
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Re: Approximately how much more was spent in 1984 for advertising in magaz
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18 Mar 2025, 04:00
18 Mar 2025, 04:00
Expert Reply
OFFICIAL EXPLANATION
We know from the pie chart that 21 percent of the 1984 expenditures went to magazines and 16 percent went to newspapers. Since these are percents of the same whole, the difference in the amounts will be $\(21-16\)$ or 5 percent of the whole, or 5 percent of the 1984 expenditures. To see this, if we let $\(E\)$ represent the expenditures, then the difference is
$$
\(21 \%(E)-16 \%(E)=(21 \%-16 \%) E=5 \%(E)\)
$$
From the bar graph we see all expenditures totaled just under 10 billion dollars in 1984. The fractional form of $\(5 \%\)$ is $\(\frac{1}{20}\)$, so the difference is just under $\(\frac{1}{20}\)$ of 10 billion or 500 million.
We know from the pie chart that 21 percent of the 1984 expenditures went to magazines and 16 percent went to newspapers. Since these are percents of the same whole, the difference in the amounts will be $\(21-16\)$ or 5 percent of the whole, or 5 percent of the 1984 expenditures. To see this, if we let $\(E\)$ represent the expenditures, then the difference is
$$
\(21 \%(E)-16 \%(E)=(21 \%-16 \%) E=5 \%(E)\)
$$
From the bar graph we see all expenditures totaled just under 10 billion dollars in 1984. The fractional form of $\(5 \%\)$ is $\(\frac{1}{20}\)$, so the difference is just under $\(\frac{1}{20}\)$ of 10 billion or 500 million.
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