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marissa [1.9K]
3 years ago
11

How can you check to see if two ratios form a proportion? Explain the method you used to find the answer to the previous problem

.
Mathematics
2 answers:
antiseptic1488 [7]3 years ago
6 0

Answer:

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Step-by-step explanation:

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Sedaia [141]3 years ago
3 0

Answer:

Write a proportion using the ratios.

Step-by-step explanation:

Find the cross products. If the cross products are equal, then the ratios form a proportion.

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Select the correct answer
IgorC [24]

Answer:

b

Step-by-step explanation:

a x (b + c) = (a x b) + (a x c)

6 0
2 years ago
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When is 20% off better than 20$ off
Crazy boy [7]

Answer:

Price > 100$

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Step-by-step explanation:

Let us assume that x% off of price y$  is better than x$ off.

Hence, \frac{xy}{1000} > x  

Hence, y > 100

Therefore, when the price is more than 100$, then only x% off on the price is better than x$. (Answer)

Again, assume that 20% off on price y$ is better than 30$ off.

Hence, \frac{20y}{100} > 30

⇒ y > 150$

Therefore, when the price is more than 150$, then only 20% of on the price is better than 30$ off. (Answer)

7 0
3 years ago
What are the x-intercepts for the graph below?
Vlad [161]

Answer:

-6,0 & -3,0

Step-by-step explanation:

7 0
2 years ago
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A castle is surrounded by a circular moat which is 5 m wide
Elanso [62]

Answer:

  1414 kL

Step-by-step explanation:

The volume of the donut-shaped moat is the product of its surface area and depth. The area is the product of its centerline length and its width.

<h3>Moat area</h3>

The diameter of the centerline of the moat is (50 m -5 m) = 45 m. The length of that centerline is ...

  C = πd = π(45 m) = 45π m

The area is this length times the width of the moat:

  moat area = (45π m)(5 m) = 225π m²

<h3>Moat volume</h3>

The volume is the product of the area and the depth of the moat:

  V = Ah = (225π m²)(2 m) = 450π m³ ≈ 1413.72 m³

1 cubic meter is 1000 liters, 1 kiloliter.

The volume of the moat is about 1414 kL.

5 0
1 year ago
What is the simplest fraction forms for the ratio of 150 to250
lora16 [44]
First You would divide both numbers by ten to get 15 and 25. Then you realize that both numbers are divisible by 5 so you divide both sides you then end up with 3 to 5 which is your answer.
3 0
3 years ago
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