Using proportions, it is found that she earned $943,000 from CD sales.
<h3>What is a proportion?</h3>
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 brainly.com/question/24372153
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-.5x^2 = -6x + 20
-.25x = -6x + 20
+6x +6x
5.75x = 20
/5.75 /5.75
x = 3.48
Answer:
150:200
Step-by-step explanation:
You can simplify it too. 3:4
66 - 18 = 48
Nonfiction : Fiction
48 : 18
Divide both by 6
8 : 3
