A website sells pictures and music downloads.

Question

A website sells pictures and music downloads. The pictures are 650 kilobytes and the music is 2,200 kilobytes. If there was 16 files and 18,150 kilobytes downloade on Thursday. What are two equations that can show how many pictures ,x, and music ,y, was downloaded on Thursday. 

 

 

 

 

 

 

 

 

 

 

 

 

Answer 1

A website sells pictures and music downloads. The pictures are 650 kilobytes and the music is 2,200 kilobytes. If there was 16 files and 18,150 kilobytes downloade on Thursday. What are two equations that can show how many pictures ,x, and music ,y, was downloaded on Thursday.

 

x650 + 2200y = 18150

 

x + y=16 => x = 16-y => 650(16-y) = 18150 - 2200y => 10400 - 650y = 18150 - 2200y => 1550y = 7750 = > y = 5

 

Therefore x = 11 and y = 5