Question

music city charges a monthly membership of $25 with each download costing $0.50. Tune Dune does not have a membership fee, but charges 1.50 per download. when is it better to beling to mysic cuty? to tune dune? write equations for each and use a graph to find your anwser

Answer 1

Graph. red• 25+0.5d (music city)
blue•. 1.5d

Music city
C=25+0.5d
C-cost
D-downloads

Both are the same cost at 25 downloads
$c = 25 + 0.5d \\ c = 25 + 0.5(25) \\ c = 25 + 12.5 \\ c = 37.5$
Tune Dune
C=1.5d
$c = 1.5d \\ c = 1.5(25) \\ c = 37.5$
Tune Dune is cheaper until the 25 song downloaded, the they are equal. After that, Music city is cheaper.