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anonymous
 one year ago
After one week a music downloading site sold over 80,000 songs. After 4 weeks the music downloading site sold over 300,000 songs. Find the average rate of change of songs per week.
75,000 songs per week
80,000 songs per week
55,000 songs per week
73,334 songs per week
anonymous
 one year ago
After one week a music downloading site sold over 80,000 songs. After 4 weeks the music downloading site sold over 300,000 songs. Find the average rate of change of songs per week. 75,000 songs per week 80,000 songs per week 55,000 songs per week 73,334 songs per week

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misssunshinexxoxo
 one year ago
Best ResponseYou've already chosen the best response.0The rate changed by 220,000. Divide by 4 to get an average weekly rate. 220,000=55,000

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0why wouldn't you divide by 3 instead of 4?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1^ you would divide by 3, not 4, since the change takes place over three weeks (300,00080,000)/3 = 73,334 (rounded)

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1or, more generally: rate of change = (number of CDs on week 4number of CDS on week 1)/(41)
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