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Ganezh [65]
3 years ago
15

How can you understand porportions

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

A proportion is a statement that two ratios are equal.  A ratio is a comparison of two different quantities.  "Miles per hour" is a ratio.  "Dollars per pound" is a ratio.  A proportion is that two of these things are equal.

For example, paying $2/pound for apples is the same as paying $6 for 3 pounds:

   \dfrac{\$2}{1 \text{ pound}} = \dfrac{\$6}{3 \text{ pounds}}

That's a portion.

When working with proportions in word problems, you start by setting up one ratio/fraction where you know all the information.  You then set up the second one that's missing a piece of information, but you make sure to set it up using the same structure.

If your first ratio is "miles over hours," then the next ratio has to have the same organization.

If your first ratio is "rise over run," then the next ratio has to have the same organization.

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5/100 as a decimal in Dollar form
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Answer:

$0.05

Step-by-step explanation:

Hope it helps and have a great day =D

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Answer:

Sale Tax($): 4.5

Step-by-step explanation:

Before Tax Price ($):  72

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In algebra, we often study relationships where a change to one variable causes change in another variable. Describe a situation
vampirchik [111]

Answer:

A familiar situation is: cost of books you pay for versus the quantity of books bought.

Cost of books ($) and quantity of books are directly proportionally related in the situation.

The graph will look like the graph in the attachment below.

A quantity (dependent variable) will change constantly in relation to another quantity (independent variable) if the relation is a proportional relationship.

A familiar situation for example can be the cost you pay for books will be directly proportional or dependent on the number of books you bought.

That is:

Number of books = independent variable

Cost ($) = dependent variable

A change in the number of books will cause a change in the cost you will pay for buying books.

This shows a direct proportional relationship between the two quantities.

On a straight line graph, the graph will be a proportional graph showing number of books on the x-axis against cost ($) you pay on the y-axis.

Therefore:

A familiar situation is: cost of books you pay for versus the quantity of books bought.

Cost of books ($) and quantity of books are directly proportionally related in the situation.

Step-by-step explanation:

hope this helps cutey ;)

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How many grams are there in 4 kilograms
AveGali [126]
There are 4,000 Grams in 4 Kilograms
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Paula's Flowers sells 39 arrangements per week. The flower shop down the street sells
Eddi Din [679]

Answer:

50:39

Step-by-step explanation:

The first number in the context always goes first!

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