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Eddi Din [679]
3 years ago
6

Rock-music sales represented 24.8% of the total music sales in 2000. By 2007, rock-music sales represented 32.4% of the total mu

sic sales. Calculate and interpret the unit rate of change (slope).
Mathematics
2 answers:
baherus [9]3 years ago
8 0

Answer:

Unit Rate of Change = 1.27%

Step-by-step explanation:

In 2000, t=1 and Total Music sales = 24.8%

In 2007, t=7 and Total Music sales = 32.4%

The Slope  m=\dfrac{32.4-24.8}{7-1} =\dfrac{7.6}{6}=1.27\%

The Unit Rate of Change is 1.27% and it means that the Total Music Sales Increased by approximately 1.27% every year.

Kay [80]3 years ago
6 0

Answer:

The unit rate of change (slope) = 1.09%

Which means that the Rock-music sales percent of the total music sales increases at the rate of 1.09% per year, from 2000 to 2007.

Step-by-step explanation:

Given;

For rock music sales

At year 2000, it represents 24.8%

At year 2007, it represents 32.4%

The unit rate of change (slope) = change in rock-music sales percent per year.

Slope = (32.4% - 24.8%)/(2007-2000) = 7.6/7 = 1.09%

The unit rate of change (slope) = 1.09%

Which means that the Rock-music sales percent of the total music sales increases at the rate of 1.09% per year, from 2000 to 2007.

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