It costs $0.50 to download an individual song and a $4 processing fee.

Question

Select the equation relating the cost of the songs, s, and the number of downloads, d.
8.PAFR.1.1
s = 4d + 0.50
s + 4d = 0.50
4 + s = 0.50d
s = 0.50d + 4

Answer 1

To determine the correct equation relating the cost of the songs (s) and the number of downloads (d), let's analyze the given information:

• The cost to download an individual song is $0.50 per download.
• There is an additional processing fee of $4.

The total cost \( s \) for downloading \( d \) songs can be calculated as the sum of the processing fee and the cost of the songs. The cost for downloading \( d \) songs is \( 0.50d \).

Thus, the total cost can be expressed as:

\[ s = 0.50d + 4 \]

This matches the last option from your list:

Correct Equation: \( s = 0.50d + 4 \)