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Rock singer and writer Beep Blair is paid 11.5% on her CD sales and music downloads. Last year, she sold 1.22 million CDs and 2.1 million music downloads. The CDs were sold to music stores for $5 cach, and the music downloads were $1 each. What was the total amount earned from CD sales?

Respuesta :

Using proportions, it is found that she earned $943,000 from CD sales.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

The total amount involved in the sells and downloads are:

1.22 x 5 + 2.1 x 1 = 8.2 million.

She was paid 11.5% of that, hence:

0.115 x 8.2 = 0.943 million = $943,000.

She earned $943,000 from CD sales.

More can be learned about proportions at https://brainly.com/question/24372153

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