The cost for a certain music plan is 9.99 per year plus $.025 per song you download if you paid $113.74 one year find the number

Question

Vilka [71]

4 years ago

9

The cost for a certain music plan is 9.99 per year plus $.025 per song you download if you paid $113.74 one year find the number

of songs downloaded

Mathematics

2 answers:

Reika [66] · Answer 1 · 2021-11-16T22:30:43+03:00

Reika [66]4 years ago

8 0

Try to make a function

garri49 [273] · Answer 2 · 2021-11-16T21:15:12+03:00

garri49 [273]4 years ago

6 0

Y=amount of money paid. (in $)
x=number of songs download.

We have this function:
y=0.25x+9.99

Then:
if y=113.74

113.74=0.25x+9.99
0.25x=113.74-9.99
0.25x=103.75
x=103.75 / 0.25
x=415

Answer: the number of songs downloaded would be 415.