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docker41 [41]
3 years ago
5

A used book store also started selling used CDs and videos. In the first week, the store sold a combination of 40 CDs and videos

. They charged $4 per CD and $6 per video and the total sales were $184. Determine the total number of CDs and videos sold.​
Mathematics
1 answer:
Deffense [45]3 years ago
8 0

Answer:

28 CD and 12 Video

Step-by-step explanation:

6 (x) + 4 (y) = 184

6 (28) + 4 (12) =184

168 + 48 = 184

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<h3>Probability and Random sampling</h3>

According to the task content;

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Hence, it follows that, when a sample of 10 calculators is selected randomly each day, 2 of the calculators are faulty by proportion.

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brainly.com/question/25403659

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Step-by-step explanation:

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