The cost to purchase a song from iTunes is $0.99 per song. The Napster membership fee is $10. In addition, each purchased song costs $0.89. How many downloaded songs, d, must be purchased for the monthly price of Napster to be the same as iTunes?

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Answer 1 · 2018-06-26T02:07:55

It will take #100# songs for the monthly price of Napster to cost the same as iTunes.

Let's create two equations to represent iTunes (#T(d)#) and Napster (#N(d)#):

#T(d)=0.99d#
#N(d)=0.89d+10#

In order for us to find when the two prices will be the same, let's set the equations equal to each other and solve for #x#:

#0.99d=0.89d+10#
#0.1d=10#
#d=100#

Hope this helps!!