A Web music store offers two versions of a popular song. The size of the standard version is 2.9

Mathematics

1 answer:

olganol [36]3 years ago

7 0

2.9S +4.5H=3772
H=3S

2.9S +4.5*3*S=3772
16.4S=3772
S=3772/16.4
S=230

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