It costs $0.50 to download an individual song and $4 to download an album. Jada has $15 to spend downloading music.



Write an equation relating the number of individual songs ss and the number of albums aa Jada can download.


It costs $0.50 to download an individual song and $4 to download an album. Jada has $15 to spend downloading music.



Write an equation relating the number of individual songs ss and the number of albums aa Jada can download.


.5s + .4a = 1.5


15 = -5s + 4a


.5s + 4a = 15


15 = 4a - 5s