Alvin is comparing the costs of music downloads from three websites.
Music Mania
| Number of Downloads | Total Cost |
|---|---|
| 3 | $4.50 |
| 5 | $7.50 |
| 7 | $10.50 |
Song
Most expensive
Song factory
Answer (2)
Calculate the cost per download for Music Mania: $4.50/3 = $1.50 .
Note the cost per download for Song Most Expensive: $1.75 .
Note the cost per download for Song Factory: $1.40 .
Compare the prices and determine that Song Most Expensive is the most expensive: Song Most expensive .
Explanation
Understanding the Problem Alvin is comparing the costs of music downloads from three websites: Music Mania, Song Most Expensive, and Song Factory. We need to determine which website is the most expensive.
Cost per Download for Music Mania First, let's calculate the cost per download for Music Mania. From the table, we see that 3 downloads cost $4.50, 5 downloads cost $7.50, and 7 downloads cost $10.50. To find the cost per download, we can divide the total cost by the number of downloads.
Calculating Music Mania's Price Cost per download for Music Mania = 3 $4.50 = $1.50 .
Song Most Expensive Price The cost per download for Song Most Expensive is given as $1.75.
Song Factory Price The cost per download for Song Factory is given as $1.40.
Comparing Prices Now, we compare the cost per download for each website: Music Mania costs $1.50 per download, Song Most Expensive costs $1.75 per download, and Song Factory costs $1.40 per download.
Determining the Most Expensive Website Since $1.75 > $1.50 > $1.40, Song Most Expensive is the most expensive website.
Final Answer Therefore, the most expensive website is Song Most Expensive.
Examples
Understanding the cost of digital goods, like music downloads, helps consumers make informed purchasing decisions. By calculating the price per song, Alvin can determine which website offers the best value. This same approach can be applied to comparing prices of other items, such as e-books, software, or streaming services. Knowing how to calculate and compare unit prices empowers consumers to make smart choices and save money.
By calculating the cost per download for each website, we find that Music Mania charges $1.50, Song Most Expensive charges $1.75, and Song Factory charges $1.40. Comparing these costs shows that Song Most Expensive is the most expensive option. Therefore, Alvin should consider the pricing from each site to make informed decisions.
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