Question

REEALLY NEED HELP!

Answer 1

say low value is x, high value is y. I mean, number of downloads.

Answer 2

Then, 3x=y

Answer 3

2.2x+4.9y=4056

Answer 4

THANKS SO much!!

Answer 5

No problem :)

Answer 6

let standard download=x, high quality=y
2.2x+4.9y=4056-----(1)
But y was downloaded 3 times as x yesterday,
>y=3x then substitute into (1)
solving gives x=240 and y=720