Question

The table below shows the cost of downloading songs from a website.Number of Songs Total Cost11$10.5613$12.4818.$17.28At this rate, what is the cost per song?Answer: $per song

Answer 1

To know the cost per song we make a division between the total Cost and the number of songs, then we can take any pair of data

I will use 11 songs and $10.56

$\frac{10.56}{11}=\frac{24}{25}=0.96$

to check we can use another pair (18 songs and $17.28)

$\frac{17.28}{11}=\frac{24}{25}=0.96$

then the cost per song is $0.96