Answer:
10 songs
Step-by-step explanation:
Let y = total money spent
x = cost of one song
Since one of the site charges $0.70 per song, we multiply x by 0.7 like this: 0.7x
There is also $8 on top of that to add up to the total cost
y = 0.7x + 8
The other site charges $1.50 per song, so we multiply x by 1.5
There is also no addtional cost
y = 1.5x
1.5x = 0.7x + 8
Subtract 0.7x from both sides
1.5x = 0.7x + 8
- 0.7x - 0.7x
0.8x = 8
Divide both sides by 0.8
0.8x/0.8 = 8/0.8
x = 10
This means Dantel will have buy 10 songs from each site if he wants the same cost from both.