kaiglerboy kaiglerboy

21-09-2016
Mathematics

Answered

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

Verified Answer :

Anonymous Anonymous

21-09-2016

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.

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salimsalvin salimsalvin

21-09-2016

try to make a function

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