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2 years ago

5

A DJ has a total of 1075 dance, rock, and country songs on her system. The dance selection is three times the size of the rock s

election. The country selection has 105 more songs than the rock selection. How many songs on the system are dance? rock? country?

1 answer:

Alexus [3.1K]2 years ago

7 0

582 dance, 194 rock, 299 country.

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Answer:

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Step-by-step explanation:

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2 years ago

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Y=2x+1
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2 years ago

The speed of an elevator varies inversely with the weight it carries. If the elevator rises at 10 feet per second when it carrie

777dan777 [17]

Answer:

$8\frac{ft}{sec}$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form $y*x=k$ or $y=k/x$

Let

x-----> the speed of the elevator

y----> the weight it carries

so

$y*x=k$

<em>Find the constant k</em>

For x=10 ft/sec, y=400 lb

substitute

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The equation is

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Answer:

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Step-by-step explanation:

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