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

Question

akhawajaaa akhawajaaa

15-12-2018
Mathematics

contestada

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

Respuesta :

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jdoe0001 jdoe0001 · Answer 1 · 2018-12-15T21:58:26+01:00

[tex]\bf \begin{array}{ccll} \stackrel{x}{weeks}&\stackrel{y}{songs}\\ \cline{1-2} 1&80000\\ 4&300000 \end{array}~\hspace{10em} (\stackrel{x_1}{1}~,~\stackrel{y_1}{80000})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{300000}) \\\\\\ \stackrel{\textit{average rate of change}}{slope = m\implies} \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{300000-80000}{4-1}\implies \cfrac{220000}{3}\quad \approx \quad 73333[/tex]

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

Respuesta :

Otras preguntas

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