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3 years ago

Which ordered pair shows an equivalent ratio of pounds to dollars?

Mathematics

1 answer:

kotegsom [21]3 years ago

5 0

Answer:

As current currency exchange rate: 1 pound = 1.2 dollar, therefore:

(30,12) (25,10) shows an equivalent ratio of pounds to dollars.

Because 30/25 = 12/10 = 6/5 = 1.2

Hope this helps!

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Answer:

a. -8.1

The numbers that are greater than -5 are -2, 3 and 0.

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3 years ago

In a standard deck of cards there are four suits: spades, clubs, hearts, and diamonds. Each suit has one each of 13 cards: ace,

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Answer:

Step-by-step explanation:

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3 years ago

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A pair of parallel lines is cut by a transversal, as shown below.

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Answer:

$x=45\degree$

Step-by-step explanation:

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3 years ago

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It cost 32 dollars for 8 cookies. What is the price of one cookie?

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So 32 dollars for 8 cookies.

To find the price of one item, you take the amount of items, and divide it by the price:

32 / 8 = 4 dollars for the price of 1 cookie.

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3 years ago

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creativ13 [48]

Using the volume of the spherical balloon, it is found that it will take 24 hours for the balloon to become completely empty.

<h3>What is the volume of a sphere?</h3>

The volume of a sphere of radius r is given by:

$V = \frac{4\pi r^3}{3}$

Aspherical balloon has a radius of 6 feet, hence the volume is:

$V = \frac{4\pi 6^3}{3} = 905$

It has already lost 20% of it's air, and air is leaking out of the balloon at a rate of 30 cubic feet per minute, hence the volume after t minutes is given by:

$V(t) = 0.8(905) - 30t$

$V(t) = 724 - 30t$

It will be completely empty when:

$V(t) = 0$

$724 - 30t = 0$

$30t = 724$

$t = \frac{724}{30}$

$t = 24.1$

Rounding, it will take 24 hours for the balloon to become completely empty.

More can be learned about the volume of a sphere at brainly.com/question/25608353

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2 years ago