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OpenStudy (anonymous):
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.
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OpenStudy (hang254):
rate of change=change in value/change in time
OpenStudy (hang254):
300000-80000=220000 220000/4=55000
OpenStudy (campbell_st):
Using Hang's method the 2 ordered pairs ar (1, 80000) and (4, 300000) so the average change is (300000 - 80000)/(4 -1)
OpenStudy (anonymous):
I got the same Answer wat @hang254 said
OpenStudy (hang254):
sweet :)
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OpenStudy (anonymous):
but but but but its wrong @hang254
OpenStudy (hang254):
sorry
OpenStudy (campbell_st):
it maybe 220000/3 or just 300000/4
OpenStudy (campbell_st):
for me.... I'd say 300000/4
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