Question

Which is a cheaper per song?
a) $12 for 15 songs
b) $9 for 10 songs

Answer 1

So since we are trying to find the price for 1 song, you will be dividing the price by the song. Divide 12 by 15 and divide 9 by 10:

$\frac{\ 12}{15}=\ 0.80\ per\ song\\ \frac{\ 9}{10}=\ 0.90\ per\ song$

Since 80 cents per song is cheaper than 90 cents, A is cheaper than B.